Many physical and psychological factors can cause ED from time to time. For example, during stressful times at home or at work, a man may temporary be unable to achieve an erection. However, then the stressful even is gone, he will be able to get back his erection again.

It is when a man is unable to achieve an erection all or most of the time that it becomes a health issue that needs to be addressed.

Many factors can lead to impotence. These include chronic stress, anxiety, hormonal imbalance, depression, diabetes, nerve damage and many other health conditions.

In fact, it is estimated that 10 to 20 million American men suffer from ED.

Prescription medications such as Cialis, Viagra and Levitra can help treat ED, but many people have never considered using natural remedies. Natural remedies have fewer side effects and can be helpful in many cases.

Listed below are the top four natural remedies that are used to treat impotence.

1. Yohimbe – Extensive research studies show that yohimbine (the most active ingredient found in yohimbe) helps with impotence. As a matter of fact, yohimbine is a prescription medication in many parts of the world.

2. Ginseng – This herb is extensively used in Asian countries for providing energy and vitality. It is also useful in treating impotence and boosting libido (sex drive). Clinical studies done have shown ginseng to be beneficial.

3. Maca – Several smaller clinical trials show that maca can help with ED. This herb is not well known but is very commonly used in some parts of the world.

4. L-arginine – Research studies support the fact that arginine seems to help with impotence. One study combining arginine with pycnogenol showed that the users doubled their sexual intercourse frequency and even had their sperm count increased significantly.