Insomnia can be due to unresolved emotional distress, but it also occurs often in athletes who are over trained. Those who choose to exercise in the evenings are more likely to experience insomnia because of the demanding nature of their work out which results in a significantly elevated basal metabolic rate right before bed. In many cases, an athlete will misinterpret the reason for their insomnia as due to not working hard enough an will attempt to correct it by intensifying their work out. In the end, this can end up in a self-destructive over training cycle. These headaches can be very painful, but usually disappear quickly.
Persistent headaches can make one prone to migraines and thus rest is mandatory.
If you become more irritable than normal, then over training may be the culprit. Often it is others, such as friends, family or a coach that will point this out before it becomes noticeable to the athlete themself. Obvious psychological factors are at play and so the answer lies in either a change in one s training regime or complete rest. If an athlete normally has a hearty appetite, but experiences a lack of appetite following vigorous work outs, then over training may be the reason why. Psychological stress, increased lactate levels and core body temperature inhibit the hypothalamus feeding center that is located in your brain.