Overtraining: Definition, signs, treatment, recovery, prevention

Have you ever felt completely exhausted, developing strange flu-like symptoms for no reason? Or noticed your race times getting progressively worse despite intense training? 

You may be experiencing the impacts of overtraining – when the volume and intensity of your workouts exceeds your body’s recovery capacity. 

Pushing through fatigue and skipping rest days might seem admirable, but it can seriously impede performance and health.

In this comprehensive guide, we’ll explore the warning signs of overtraining as well as evidence-based tips for treatment, recovery, and prevention. 

You’ll learn how to harness hard training effectively by creating a tailored regimen that works with, not against, your body’s needs for rest and recovery. The goal is to support sustainable fitness gains over the long term.

What is overtraining?

Overtraining occurs when the intensity or volume of your workouts exceeds your body’s ability to recover and adapt. You stress your system too much without allowing enough rest to rebuild and become stronger. 

It’s easy to think that more must be better when it comes to exercise. But more mileage, heavier weights, and faster paces don’t always translate to better performance or health.

When you overtrain, you strain muscles, connective tissues, hormones, and the nervous system. Your body goes into a state of prolonged fatigue rather than super-compensation. 

You’ll likely see decreases in strength and speed, feel constant exhaustion, get frequent illnesses, and lose motivation to work out. Inflammation increases while immune function decreases [1]. 

Overuse injuries become more likely. Simply put, overtraining hinders all the progress you worked so hard to achieve. It’s crucial to listen to warning signs and prevent things from escalating too far.

Why is overtraining bad?

Pushing through increasing fatigue, soreness, and decreasing performance might seem dedicated, but plowing past your body’s limits does more harm than good. 

Overtraining hinders all the progress you worked so hard to achieve. You lose speed, strength, and endurance instead of gaining [2]. 

Immunity drops, leading to sickness and infection. Inflammation increases raising injury risk. You fatigue faster dragging through workouts that should energize. 

Worse still, prolonged exhaustion and impaired performance can make you lose motivation for exercise altogether. Listen to what your body tells you and pull back before reaching that point. The key is working out smarter, not harder or more.

why is overtraining bad

What are the signs and symptoms of overtraining?

Overtraining occurs along a continuum, with subtle symptoms at first that lead to more severe manifestations if you ignore warnings and continue pushing too hard. 

Being attuned to your body’s signals can help you catch overtraining early before prolonged recovery becomes necessary. Here are some key signs to watch out for [3]:

1. Persistent muscle soreness and fatigue

Suppose you continually feel excessively sore going into workouts, to the point it affects performance, and daily fatigue persists even with adequate nightly sleep. In that case, your body likely isn’t recovering correctly between training sessions. 

Feeling exhausted before you even start to exercise is an early clue you may be doing too much.

2. Decreased performance and speed

Seeing your race pace, lift numbers, or overall workout capacity decrease even as you train harder are clear indicators of overtraining. 

You’re slower and weaker as your body fails to adapt to the heavy workload. Keeping detailed training logs helps you track performance declines.

3. Elevated resting heart rate

Your resting heart rate measured first thing in the morning normally fluctuates within a few beats per minute day-to-day. A sustained rise of more than 10 bpm over your personal average could signify mounting overtraining stress.

4. Insomnia and restlessness

Overtraining raises stress hormone levels, making it difficult to fall asleep and stay asleep throughout the night. Tossing, turning, restless legs, and anxiety dreams become more frequent when you’ve pushed too hard without adequate downtime.

5. Frequent illnesses and infections

Intense training without recovery time suppresses immune function by lowering protective white blood cells. You’ll catch more cold and flu bugs as defenses decline, taking longer to recover when sickness strikes.

6. Loss of motivation, depression

Overtraining overwhelms the central nervous system, draining you both physically and mentally. Notable changes in mood or attitude may indicate a need to prioritize self-care, including exercise and mental health.

What causes overtraining?

Several factors contribute to crossing the line from productive training to overtraining. Here are some of them [4]:

1. Training too frequently

Not properly spacing out intense training sessions with enough lower intensity recovery days between prompts overtraining. Scheduling adequate easy recovery workouts and a few complete rest days every week is essential to avoid overtaxing your body.

2. Sudden jumps in mileage or intensity

Large, sudden spikes in running mileage, weights lifted, workout pace, or other training loads increase injury risk and overtraining likelihood. You need to very gradually progress key variables week-to-week rather than abruptly overreaching.

3. Inadequate nutrition

Consuming too few calories or lacking key nutrients necessary for muscle repair (like protein, carbs, iron, and antioxidants) impedes recovery between sessions. Properly fueling before, during, and after workouts enables the body to adapt rather than struggle.

4. Underprioritizing sleep

Getting deep, high-quality sleep facilitates tissue growth and restoration needed to continually adapt to exercise stress without breaking down. Not sleeping enough hampers performance gains.

5. High non-training life stresses

Stress hormones like cortisol rise due to mental/emotional stressors as well, further catabolizing precious muscle. Effectively managing a busy work schedule, relationships, injuries, and obligations lessens the load.

6. Ignoring early warning signs

Catching emerging overtraining symptoms early and taking prompt rest minimizes severity. But plowing through worsening fatigue often culminates in injury or illness forcing you to stop completely.

What are the long-term effects of overtraining?

Persistently engaging in excessive physical training beyond your body’s recovery capacity can lead to overtraining, a condition with various negative impacts on both physical and mental health. 

Understanding these long-term effects is crucial for maintaining your overall well-being and optimal athletic performance.

Physical health impacts

  • Weakened immune system: Continuous overtraining may compromise your immune response, making you more susceptible to infections and illnesses [3].
  • Persistent fatigue: Overexerting the body without adequate rest leads to chronic tiredness, hindering daily activities and training.
  • Increased injury risk: The strain of overtraining heightens the likelihood of injuries like stress fractures, particularly in weight-bearing bones [3].
  • Disrupted sleep patterns: Overtraining can cause difficulty falling and staying asleep, impacting overall sleep quality.

Mental health impacts

  • Decreased appetite: Excessive training can suppress hunger, leading to inadequate nutrient intake and potential weight loss.
  • Mood swings: The stress of overtraining can result in mood disturbances, including irritability and depression [3].

Athletic performance

  • Reduced performance: Contrary to the training goal, overtraining diminishes athletic capabilities and stamina over time.

It’s essential to balance training with sufficient recovery time to prevent these detrimental effects, ensuring your body and mind are adequately rested and rejuvenated between training sessions.

athletic performance

What does overtraining look like in different sports?

While all athletes are vulnerable to overtraining if they push too hard without enough recovery, symptoms and optimal prevention strategies often vary across sports. Understanding these nuances helps customize your training appropriately.

Endurance sports overtraining

Endurance athletes like runners, cyclists, triathletes, and swimmers risk overtraining when rapidly ramping up mileage, duration, or frequency [5]. As glycolytic and oxidative energy systems struggle to keep pace, you may notice these signs occur:

  • Decreased race times and workout capacity
  • Persistent fatigue interfering with daily life
  • Insomnia and restlessness at night
  • Unintentional weight loss from calorie demands
  • Frequent illnesses as immunity drops

You can prevent this by:

  • Dividing training into hard and easy days
  • Progressing volume slowly (less than 10% per week)
  • Consuming anti-inflammatory foods like fatty fish
  • Prioritizing sleep quantity and quality
  • Taking rest days when needed

Strength sports overtraining

Though less aerobically taxing, strength sports like powerlifting and bodybuilding carry high mechanical stress [6]. Overtraining shows up as:

  • Plateauing or decreasing lift numbers
  • Lingering muscle soreness between sessions
  • Joint pain and decreased range of motion
  • Central nervous system burnout

Prevent strength overtraining by:

  • Matching heavy and light technical lifting days
  • Taking full rest days from the gym
  • Emphasizing protein intake for recovery
  • Managing joint pain proactively
  • Listening to body feedback closely

Burnout and overtraining: What’s the difference?

The line between burnout and overtraining often gets blurred. Both leave you feeling crushed by fatigue, disinterested in training, and not performing your best. But despite the overlap in symptoms, key nuances exist between the two states.

Overtraining occurs when the volume and intensity of sports training exceeds the body’s capacity to recover and adapt. It stems specifically from physical stress exceeding physiological limits over a period of time.

In contrast, burnout relates more to unrelenting mental, emotional and life stresses building up over time and leaving you overwhelmed and exhausted [4]. The source of burnout is predominantly psychological fatigue.

SourceMental, emotional overloadExcessive physical training load
Correlates withNon-training life stressesSpikes in training frequency, intensity, volume
SymptomsEmotional exhaustion, loss of passion, helpless feelingsDecreased performance, fatigue, increased illness rates
Recovery needsPsychological intervention, identify passionsRest from exercise, emphasize recover nutrition

Overall, burnout and overtraining both stem from imbalance between strain and capacity to recover. However, there are distinct differences in the source and expression of symptoms for these two states. 

Considering the exact triggers and manifestations provides clues as to which specific condition you may be dealing with. Tune into what your mind and body are telling you.

How overtraining increases injury risk

Overtraining can significantly increase the risk of injuries, as it weakens the body’s immune system and leaves muscles prone to damage. 

When you push your body beyond its limits, it becomes more susceptible to illnesses and injuries. 

Overtraining can also lead to poor judgment, causing athletes to ignore their body’s signals and push through pain, which can result in a higher likelihood of injury. 

Additionally, overtraining can cause a decrease in performance and an increased risk of injury during competitions.

How to train smarter and prevent injuries

To minimize the risk of injuries while training, consider the following tips:

  1. Pay attention to signs of overtraining, like fatigue, irritability, restlessness, and moodiness. These symptoms can indicate that you’re pushing your body too hard.
  2. Give your body the time it needs to recover and heal between workouts. Aim for at least one rest day per week and 7-9 hours of sleep per night.
  3. Consume a diet rich in nutrients, such as fruits, vegetables, lean proteins, whole grains, and healthy fats, to support your body’s recovery process.
  4. Drink plenty of water to prevent dehydration, which can contribute to muscle cramps and other injuries.
  5. Avoid sudden changes in the intensity or duration of your workouts. Instead, increase the intensity or duration by 10-20% each week.
  6. Incorporate low-impact activities and different workouts to reduce stress on your body.
  7. Focus on stretching and strengthening the muscles most used in your sport to prevent injuries.
  8. Proper warm-up and cool-down routines can help prevent injuries and promote recovery.

Overreaching vs. Overtraining

These two terms are often used interchangeably, but they are not the same thing. Overreaching is a state of fatigue that occurs due to intense training while overtraining is a more severe and long-term condition that can lead to serious health problems [7]. 

Understanding the differences between these two is crucial for any athlete or fitness enthusiast who wants to achieve their goals without compromising their health.

Symptoms to watch out for

One of the critical differences between overreaching and overtraining is the duration of symptoms. Overreaching is usually a short-term state that can last for a few days or weeks while overtraining can take months to recover from [7]. 

Overreaching is often a sign that an athlete is pushing themselves too hard and needs to take a break to recover. 

While overtraining can occur when an athlete continues to train intensely without giving their body enough time to recover. It can take months to recover from overtraining, and in severe cases, it can lead to permanent damage to the body.

Symptoms of overreaching include:

  • Fatigue
  • Decreased performance
  • Increased heart rate

These symptoms can be resolved with rest and proper nutrition. 

On the other hand, overtraining is a more serious condition that is characterized by: 

  • Chronic fatigue syndrome
  • Decreased performance
  • Other health problems like insomnia and depression
  • Decreased immune function

Therefore, it is essential not to confuse overreaching with overtraining, as overtraining can have more severe consequences.

Overreaching can be resolved with rest and proper nutrition; overtraining is a more severe condition requiring medical intervention and a long recovery period. 

Athletes and fitness enthusiasts should be aware of the signs and symptoms of both conditions and take steps to prevent them by following a balanced training program that includes adequate rest and recovery time.

how do you prevent and treat overtraining

How do you prevent and treat overtraining?

Overtraining can be a prevalent issue when you exert yourself excessively during workouts without allowing your body adequate time to recover. 

Treatment and recovery

When you experience symptoms of overtraining mentioned above, it’s essential to take steps to treat and recover from it. Here are some things you can do [8]:

1. Take a break from working out completely

When you’re experiencing overtraining, it’s crucial to take a break from exercise altogether. This will allow your body to recover and heal from the stress and demands placed upon it. Complete rest is essential for overcoming overtraining and preventing further complications.

2. Focus on sleep and stress reduction

During the recovery process, prioritize getting enough sleep and practicing stress-reducing techniques. Sleep is vital for muscle repair and overall recovery, while stress reduction can help alleviate some of the mental fatigue associated with overtraining. Techniques like deep breathing, meditation, or yoga can be particularly helpful.

3. Eat a nutrient-rich diet to promote recovery

A balanced diet is crucial for aiding recovery from overtraining. Consume foods rich in essential nutrients, like fruits, vegetables, lean proteins, whole grains, and healthy fats. These nutrients will support your body’s recovery process and help you regain strength and stamina.

4. Do light exercise like walking or yoga when you start back

Once you’ve taken a break and begun to recover, gradually reintroduce exercise into your routine. Start with low-impact activities like walking or yoga to aid recovery further. These activities can help you regain strength and flexibility without putting additional stress on your body.

5. Build back up slowly once symptoms resolve

As your symptoms improve and you feel more like yourself, slowly progress to more intense workouts. Listen to your body’s signals and avoid pushing yourself too hard, as this can lead to further overtraining and injuries. By following a gradual return to exercise, you can effectively overcome overtraining and regain your strength and stamina.


Overtraining can lead to numerous health problems and injuries, which is why it’s essential to take steps to prevent it. Here are some detailed ways to prevent overtraining:

1. Take rest and recovery days

It’s important to give your body time to recover between workouts. This means taking at least one or two rest days per week, possibly more depending on your fitness level and the intensity of your workouts.

2. Follow a smart training plan with built-in rest phases

A good training plan should include periods of rest and recovery, as well as phases of increased intensity. This can prevent overtraining and ensure that you’re making progress towards your fitness goals.

3. Pay attention to warning signs from your body

Your body will often give signs that you’re overtraining, such as fatigue, soreness, and decreased performance. It’s important to listen to these signals and adjust your training plan accordingly.

4. Eat a balanced diet high in anti-inflammatory foods

Proper nutrition is essential for preventing overtraining. Focus on eating a balanced diet with plenty of fruits, vegetables, whole grains, lean proteins, and healthy fats. Foods with anti-inflammatory properties, like omega-3 fatty acids and turmeric, can also be beneficial.

5. Manage stress levels with meditation, massage, etc.

Stress can contribute to overtraining by making it harder for your body to recover. Try incorporating relaxation techniques like meditation, yoga, or massage to manage stress. This can help you feel more relaxed and refreshed, both physically and mentally.

Closing thoughts

Overtraining is a multifaceted issue beyond physical exhaustion. It encompasses a range of symptoms and effects that can significantly impact physical and mental health. 

Understanding the signs, causes, and differences between overreaching and overtraining is vital for athletes and fitness enthusiasts. 

The key lies in striking a balance between rigorous training and adequate recovery. Remember, the goal is not just to push your limits but to do so sustainably and healthily. 

By listening to your body, incorporating rest and recovery into your routine, and adopting a well-rounded approach to training, you can avoid the pitfalls of overtraining. 

This will enhance your performance and ensure long-term well-being and enjoyment in your athletic pursuits.


How do I recover from overtraining?

To recover from overtraining, prioritize rest, reduce training intensity, and ensure a balanced diet rich in nutrients. Incorporate stress-reducing activities like yoga or meditation, and consider seeking professional guidance for a tailored recovery plan.

Why do I overtrain so easily?

You may overtrain easily due to insufficient rest, inadequate nutrition, or an overly intense training regimen that exceeds your body’s recovery capacity. Personal factors like stress levels, sleep quality, and genetic predispositions can also contribute to this tendency.

Can eating more help with overtraining?

Eating more can help with overtraining, mainly if the increased intake includes nutrient-rich foods that support recovery and replenish energy stores. Balanced nutrition is crucial to repair muscles, restore energy levels, and boost overall recovery.

What happens after overtraining?

After overtraining, you may experience symptoms like chronic fatigue, decreased athletic performance, mood swings, and a higher risk of injuries. Long-term effects can include weakened immune function and sleep and hormonal balance disruptions.

[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3435910/
[2] https://www.healthline.com/health/signs-of-overtraining
[3] https://www.webmd.com/fitness-exercise/what-to-know-about-overtraining
[4] https://www.rchsd.org/programs-services/sports-medicine/conditions-treated/overtraining-syndromeburnout/
[5] https://sportsmedicine-open.springeropen.com/articles/10.1186/s40798-023-00614-3
[6] https://pubmed.ncbi.nlm.nih.gov/31820373/
[7] https://www.hss.edu/article_overtraining.asp
[8] https://www.lifeextension.com/wellness/fitness/overexertion-how-to-recover

The information included in this article is for informational purposes only. The purpose of this webpage is to promote broad consumer understanding and knowledge of various health topics. It is not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of your physician or other qualified health care provider with any questions you may have regarding a medical condition or treatment and before undertaking a new health care regimen, and never disregard professional medical advice or delay in seeking it because of something you have read on this website.