I am 55, Over the last few years I just was not getting hard like I used to. It even seemed like I was not as big anymore when I did get hard. I have been using the Wave for one month. I am thicker, and I get hard like I used to. And i am back to ''normal size'' when erect . It has gotten noticeably better each passing week. I am so impressed I just ordered the Apex Pro. Thank you Myoro