Thanks for the question. In men, there are many causes for a lower sex libido or lower sex drive. Commonly, they are associated with medications which interfere with libido. Anti-depressants, steroids, alcohol, illness, tension, stress etc. also can cause libido related problems. Lower testosterone levels can also cause issues with your libido. Anyway, lower libido is a condition which can be treated successfully. A complete physical checkup is necessary at first. Blood tests, entire body checkup etc. are to be done on the suggestion of a doctor. You should also follow a healthy dieting and lifestyle. Limit alcohol intake, reduce stress and adopt a healthy lifestyle. Counseling can also help at times. If these are not helping, you may require a testosterone boost or other medications as prescribed by your doctor. I hope I have answered your query well. Take care.