Listed below are some of the common effects and cited signs of<unk> .<unk>  may be accompanied by one or more concomitant symptoms: * Persistent muscle soreness * Persistent fatigue, different from just being tired from a hard training session, occurs when fatigue continues even after adequate rest. * Elevated resting heart rate, a persistently high heart rate after adequate rest such as in the morning after sleep, can be an indicator of<unk> . * Reduced heart rate variability * Increased susceptibility to infections * Increased incidence of injuries * Irritability * Depression * Mental breakdown * Burnout It is important to note the difference between<unk>  and over-reaching; over-reaching is when an athlete is undergoing hard training but with adequate recovery,<unk>  however, is when an athlete is undergoing hard training without the adequate recovery. With over-reaching, the consequential drop in performance can be resolved in a few days or weeks. Performance * Early onset of fatigue * Decreased aerobic capacity (VO2 max) * Poor physical performance * Inability to complete workouts * Delayed recovery<unk>  can affect the athlete's athletic ability and other areas of life, such as performance in studies or the work force. An overtrained athlete who is suffering from physical and or psychological symptoms could also have trouble socialising with friends and family, studying for an exam or preparing for work.
Overtraining
Deconditioning
Preconditioning 
Allostatic load
Stress shielding
Homeostasis
Neuraxial blockade
Meditation