13 Everyday things you never knew affect a man’s performance in bed

4. Caffeine

So, we talked about alcohol and such, but we didn’t know that caffeine could hurt sexual desire and performance. It turns out that loading up on multiple cups of joe day after day can actually hamper your ability in the sack. The important thing to remember here is that you want to take your own personal health history into account. People with diabetes will need to be careful since caffeine can raise blood sugar levels. Also, caffeine has different effects on different people. Some people get a huge buzz from it (yay!) while others feel more tame and relaxed (no!)