My nephew thinks it’s because his body runs warmer and they smell the blood more easily. I think that’s likely. He’s always wanting to turn the ac to colder because he cannot take the heat.
I’m the same way. It hits 80 and I’m really getting uncomfortable. Every year I’m covered in mosquito bites. My husband has none. He feels great at warmer temps.
One year, in the line of duty on my job, I got 40 mosquito bites on my face. What a mess. But for almost 10 years after, I was totally immune. They bit but produced absolutely no swelling or itch....except they died!! Heh heh