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.
Cortisol is a steroid hormone produced by the adrenal gland. It is released in response to ACTH (adrenocorticotropic hormone), which is produced by the pituitary gland near the brain. Adrenocorticotropic hormone stimulates the secretion of hormones by the adrenal cortex.here are certain diseases, such as Addisonâs disease and Cushingâs disease, which affect the amount of cortisol produced by the adrenal gland. The test is used in the diagnosis of these diseases and as a way to assess the functioning of the adrenal and pituitary glands.