For many people, coffee is the magical brew that kickstarts the day, a much-needed pick-me-up in the afternoon, and sometimes even a well-appreciated digestive after dinner. However, how much coffee is too much? A large new study claims to hold the answer.

New research, now published in the American Journal of Clinical Nutrition, investigates whether the order in which we drink beer and wine has any impact on the severity of our hangover.

Available treatments for tooth sensitivity are lacking in a number of ways, such as being ineffective and predisposing patients to bacteria and cavities.