It is true: Unhealthy people do unhealthy things. There is a parasite that are can infect rats, and the rats will subconsciously put itself in a cat's way to be eaten because the parasite wants to be in the cat where its(the parasite's)survival is better. That rat was sick. For humans, we also get parasite, and they lead us to do things we would not normally do in healthier bodies.
The SAD, and the chemicals that are in meat, steroids, Antibiotics , pestisides in the feed, herbicides, toxify our bodies, and makes us act strangely, and many times destructively. Our bodies are CLOGGED UP with these toxins, inflammatories, and gunk. Not to mention the steroids makes us more aggressive towards each other.
Becoming gay could be an effect of our poor health because the decision to be gay is not healthy, and it won't make you live longer.