Eradicate the Odor
Most people shower to remove or prevent body odor. That odor is produced in part by sebum, an oil the skin manufactures to keep it moisturized. When you shower, you remove the sebum from the skin—along with all the dirt it can collect. Hot showers further strip the skin of sebum, dirt and potentially offensive odor.
“That’s why people are inclined to shower more frequently in summer,” when sunblock and sweat may add to that tacky, dirty feeling, Dr. Ogunleye says. However, she adds, “lotion may marginally attract more dirt, but not enough to make a huge difference as far as odor.”
While the cultural norm in the U.S. is to shower at least once a day, typically in the morning, showering habits are actually more tied to culture than many would suspect. “There is some evidence to suggest that different ethnicities produce different levels of sebum,” the dermatologist says. “Some people shower every night because that was what their family did,” she says.