Which possible cause might be responsible for differences in sexual orientation?

The person's behaviour, desire and feelings can be responsible for differences in sexual orientation. Sexual orientation depends on to whom you are attracted to and have relationship romantically, emotionally, and sexually. Sexual orientations can be gay, lesbian, straight, bisexual, and asexual.

You can drink laxative, or  do this exercise when you are sitting in the bathroom on the toilet. to relieve  constipation  fast or in about 1 minute, pinch your nose after your usual exhalation. start holding your breath. but do not mouth breath during this just hold your breath.