pokemong

I got a three-parter, sorry. How does masturbation affect other aspects of life, such as:

1) physical performance (e.g. is masturbating before going for a run/to the gym a good idea?);

2) mood (e.g. how does masturbation affect people suffering from depression / anxiety); and

3) health (e.g. if one is fighting a serious illness, could masturbation help or hinder recovery?)

Perhaps you could recommend some studies that look into any of the above?