Even methane (natural gas) is lighter than air, but not by much. Carbon dioxide, which is contained in the air we breathe out and is also easily and safely manufactured by mixing bicarbonate of soda and vinegar, is heavier than air. It tends to sink to the floor and accumulate. So it's a good job that houses aren't air tight.
Cuddling, holding, and sexual play releases chemicals, like oxytocin, in the brain that create a sense of well-being and happiness, says Dr. Renee Horowitz, an ob-gyn who recently opened the Center for Sexual Wellness in Farmington Hills, Michigan.
Cuddling With Your Partner Does Something Very Surprising to Your Health. 1  1. Cuddling makes us happier. 2  2. Cuddling can strengthen our immune systems. 3  3. Cuddling makes us less anxious. 4  4. Cuddling could help us sleep better. 5  5. Cuddling goes hand-in-hand with closer relationships.