You might spice up your love life by adding some chili peppers to your diet. The stuff in cayennes, jalapenos, habaneros, and other peppers that give them their heat relaxes the arteries -- and that helps blood flow to the heart and other organs, including the penis. Chilies can also help lower blood pressure and cholesterol and prevent blood clots.
A study published in May 2014 in The Journal of Sexual Medicine found that some men can reverse erectile dysfunction with healthy lifestyle changes, such as exercise, weight loss, a varied diet, and good sleep. The Australian researchers also showed that even if erectile dysfunction medication is required, it's likely to be more effective if you implement these healthy lifestyle changes.