An invisible killer; hair loss; probiotic pills and natural probiotics; Dr. Travis' dog gets acupuncture; a shocking viral trend; an essential nutrient.

Mercury in seafood; a young woman is slowly going blind; a mother-son duo become a viral beauty sensation; celebrity health trends; fighting crime with sex toys; an easy swap to double a dose of vitamin D.

Health headlines; Dr. Travis' new book; a nanny burns a toddler with a curling iron; how to choose a nanny to keep children safe; a slick new accessory for the bedroom; a grandmother thinks she can lick away blindness; the newest ``nude'' exercise.