As I mentioned earlier, when we talk about testosterone and behaviour in the same sentence, somehow, unintentionally, the first word we think of is 'aggression'. It's like a default setting. Dr Ajith says," a decrease in testosterone hormone can cause erectile dysfunction and premature ejaculation." Psychologically, an individual may get depressed as the brain has cortical networks that activate testosterone levels, spatial cognition which basically means where do you get coffee, where do you get clothes, your way back home, and many other cognitive functions get affected.