THE GOOD NEWS
-- When coronary arteries are clogged, smaller arteries expand to take over some of the blood flow. A new drug, still unnamed, has been shown to enhance the process in dogs. If it works in humans, it could be a cheaper, safer alternative to standard bypass surgery or balloon angioplasty.
-- Nicotine gum, nasal sprays and patches have now been definitively proved effective in helping the motivated quit smoking.
-- Doctors now understand, after 40 years of using it, how one antituberculosis medication works: Isoniazid interferes with a protective coat around the TB bacillus. The discovery may lead...