Gambling is something which makes you win money by sheer luck or get paid by their opponents to make them win by losing pointedly. Suppose gambling is involved in sports players don't have any sportsmanship as they already know what is the results affects their handwork in which they have trained in childhood to make them come to this level. But all this hard work goes to the drains as they are paid by their employees or any other source.
Wearing jewelleries might affect sports performance because you might hit someone with that jewellery
Badly
if you concentrate and don't swap mosquitoes you can do sports faster
Steroid's
Harder to breathe.
It affects your concentration and the performance. If you're very anxious, you can not focus or concentrate on work, school, and sports.
Well if you are drunk then it can affect your co ordination and spatial awareness
pressure, diet, depression
if you concentrate and don't swap mosquitoes you can do sports faster
it enhances it, makes you better, spares you from injury
because if you set a target you will want to reach your goal and do better in your performance
taking steroids makes u big