Drink at least eight glasses of water a day
When experts comb through the research, they can find no evidence that supports this claim. The best advice for staying hydrated is to drink frequently throughout the day, even if you’re not thirsty.
Rest is best for back pain
Doctors still hand out this advice – but it’s been decades since bed rest was prescribed for back pain. The Australian Government Department of Health now recommends that doctors and patients should treat low back pain with non-drug therapies like heat, massage, tai chi, yoga, acupuncture, or spinal manipulation (chiropractic), and over-the-counter pain meds and patients should try to stay active.
Shaved hair grows back faster, coarser and darker
Yeah, no: shaving hair doesn’t change its thickness, colour, or rate of growth, according to the Mayo Clinic. Shaving facial or body hair gives the hair a blunt tip. The tip might feel coarse as it grows out, which can make it more noticeable or appear thicker or darker. But it’s not.