When they drop to a "normal" weight, their body reacts the way a thinner person's would when starving to death.
"Eat food" isn't an obvious truism; he means eat actual food and not food-like products, like cheese in a can, breakfast shakes, etc. Rule of thumb: "Don't eat anything your great-great-grandmother wouldn't recognize as food."
- Clear your stuffed nose!
Forget Sudafed. An easier, quicker, and cheaper way to relieve sinus pressure is by alternately thrusting your tongue against the roof of your mouth, then pressing between your eyebrows with one finger. This causes the vomer bone, which runs through the nasal passages to the mouth, to rock back and forth, says Lisa DeStefano, D.O., an assistant professor at the Michigan State University college of osteopathic medicine. The motion loosens congestion; after 20 seconds, you'll feel your sinuses start to drain.