"seasonal". And it doesnt effect sport performance.
It can affect your sport's performance by the characteristics you have that affect play.
ALL DRUGS will affect your performance in some sort of way.
Diet affects your sport performance because if you have the right diet then you will not have energy and fitness.
One can easily faint
when you are older your body starts to fail you
it helps the performance of the athlete because he believes there is a award for good work.
truly depends how you controll your anxiety
aggression makes the opposing player fear you