• Water bottles, 1
• Water drinking
  • for cold and flu treatment, 1
  • importance of, 1, 2
  • for toxin removal, 1
  • for urinary tract infection, 1
• Weight loss, exercise for, 1
• Wet hair, effect on immunity, 1
• White blood cells, 1, 2, 3, 4, 5
• White noise machine, for inducing sleep, 1
• White tea, 1
• Whole grains, 1, 2
• Winter, immune system during, 1
• Workout buddy, 1
• Workplaces, 1
• Work spaces
  • disinfecting, 1
  • professions with most germs in, 1
• Work stress, 1
• Worrying, effect on immunity, 1