Waking Up. 1  1. Do not press the snooze button. Wake up as soon as your alarm goes off. 2  2. Seek light immediately. Human brains are wired to respond to light as a cue to awaken from sleep. 3  3. Have a moderate amount of coffee. Caffeine is a powerful stimulant.
Grapefruit is an excellent source of vitamin C, a vitamin that helps to support the immune system. Vitamin C-rich foods like grapefruit may help reduce cold symptoms or severity of cold symptoms; over 20 scientific studies have suggested that vitamin C is a cold-fighter.
Grapefruit Vitamin C Content. One serving of grapefruit is half of a medium grapefruit, which is 4 inches in diameter. Each serving contains 44 milligrams of vitamin C, which is 73 percent of the daily value of 60 milligrams for people following a 2,000-calorie diet. If you eat an entire grapefruit, you will have consumed the recommended amount of vitamin C for the day. This makes grapefruit an excellent source of vitamin C.