Do you use hot or cold water when you wash your hands?
Well, new research suggests that cold water might be just as good as warm water!
US scientists studied a group of volunteers and found that washing with cold water (15C) instead of hot water (38C) didn’t make a big difference to how much bacteria was killed.
They also said that using antibacterial soap instead of normal soap didn’t make much difference either.
What made a difference was the time you took to wash your hands. You should scrub your hands for at least 10 seconds.