Veteran New York plumbing contractor Evan Samouhos was so confident in the potential energy savings offered by a new domestic water booster pump system that he fronted the purchase himself. “We had ...

For decades, many of us have thought we could “boost” our immune systems with vitamin C or herbs, which would fight contagious illnesses, such as colds and the flu. But in reality, there are no quick ...

This story is from Manual, GQ’s flagship newsletter offering useful advice on style, health, and more, four days a week. Sign up here to get it in your inbox. Each year, supplement brands fall over ...