Not dealing with bad breath: possibly harmful.
istock/Eva Katalin Kondoros
Bad breath isn’t just embarrassing, it can also be a sign of underlying health problems like an infection. Regularly rinse with mouthwash, brush after you eat, and keep hydrated for a healthy, sweet-smelling mouth. If you have any other cause for concern, check with your doctor.
Using hair dye: possibly harmful.
There are nearly 5,000 chemicals used in hair dye products, some of which are reportedly carcinogenic in animals. One small study found that hairdressers had an increased risk of bladder cancer, but according to the National Cancer Institute, there is conflicting information regarding a link between use of personal hair dye and development of cancer since chemicals in hair dyes today are significantly less harmful than boxed color from the ’70s. You can, however, suffer hair damage from over-coloring.