No, don't bark like a dog. That seldom works. But this tree bark extract does improve sexual health. Here's the fancy science.
A study of 50,000 men offers up an incredibly simple and tasty way to give you stronger erections.
Want to improve your sexual health? Here's the one food you need to eat every day, according to science.
Eat a few of these every day and you'll never again have to use your fist to knock on a door.