Exercise increases sexual function

Exercise reported increases sexual function and motivation in human and experimental animals. It may be due to increase in fitness and level of reproductive hormones. Even, exercise training improved erectile response in type 1 diabetic rats those exhibit lower erectile function. Recovery in erectile function was observed in aging hypertensive and normotensive rats using exercise and controlling diets.

How safe is online viagra?

I receive spam mail regarding availability of cheap viagra (sildenafil) on line. Many people get similar mail for increasing sexual function. Is online viagra safe? A study was conducted by Campbell et al. to determine the quality of online viagra. The researchers collected viagra samples from 22 sources selling viagra online for quality control tests. Maximum (77%) of the tested medicine were counterfeit and contained less active ingredient (30-50% of label claim).  Counterfeits did not provide product information leaflets, and appropriate safety warnings. It is very essential to check the credibility of source before buying viagra and other generic medicines online. 

Source:
[Campbell N, Clark JP, Stecher VJ, and Goldstein I. Internet-ordered Viagra (sildenafil citrate) is rarely genuine. J Sex Med 2012;9:2943–2951.] It was found that 

Counterfeit phosphodiesterase type 5 inhibitors pose significant safety risks