It is not just females who experience a drop in their sex drive in middle age although a lot of men as well. Males encounter a drop in their sex drive because of a fall in testosterone amounts in the systems of theirs.  
It's acknowledged that males begin losing testosterone when they hit thirty at the speed of 1-1.5 % a year. What it simply means is the fact that by the precious time you are 40, you are 10-15 % short of testosterone. Not just this, certain problems like chronic stress, depression, deficiency of slumber etc. can further aggravate this particular loss of testosterone.  
However, it is possible to boost male libido and testosterone naturally. Here are some easy and simple ways to do so:  
1. Start Working Out  
One of the best ways to get a libido improvement is by working out regularly. One of the most important benefits of exercise is that it can help increase blood flow in your body. Not just this, it can additionally help you obtain rid of obvious arteries and excess fat. This too promotes much better circulation.  
Increased circulation of blood to the genitals can help boost your libido. Moreover, lifting weights can also help boost testosterone in the body of yours.  
2. Get started (https://www.timesofisrael.com/spotlight/top-7-best-male-enhancement-pills-top-7-most-effective-pills-to-use/) Enough Sleep  
Not enough sleep is a big libido killer in men. Sleep deprivation increases stress that tends to lower testosterone. Thus, it can lead to a reduced libido.