Too much stress, exertion, disease like
diabetes, hypertension,
thyroid problems, obesity also may cause such type of sexual weakness..... It can also happen at this age without any specific reason.... So get first checked with sexologist
Next Steps
Ayurvedic medicines gives nice results in such problems as it gives proper strength and stamina with proper erections...... so Consult a reputed ayurvedic sexologist In your city
Health Tips
Avoid Viagra like medicines...... Follow proper diet and lifestyle