Hummingbirds are birds native to the Americas and comprise the biological family Trochilidae. With about 360 species, they occur from Alaska to Tierra del Fuego, but the vast majority of the species are found in the tropics. They are small birds, with most species measuring 7.5–13 cm in length.

Danshen, sometimes called red sage, scientific name of Salvia miltiorrhiza, has been used for centuries to help treat a wide range of medical concerns, from high cholesterol to type 2 diabetes. There's some evidence that its benefits aren't just based on old wives' tales.