Question about athletic performance and aging

[Tabaristiio]

Are there any scientific evidence suggesting that athletes decline in athletic performance/abilities after reaching their late 30s?

Such as in terms of speed, agility, reflexes, hand eye coordination, stamina and etc.

If yes, what are they?

 

[DrClaude]

Have you googled the question? It is not hard to find many references, for instance

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3928819/
https://eurapa.biomedcentral.com/articles/10.1007/s11556-010-0073-6

 

[Greg Bernhardt]

For men testosterone levels start dropping by 1% a year after 30.
http://www.healthline.com/health/low-testosterone/testosterone-levels-by-age#overview1