As I compulsively check my new device, ping-ponging between real and virtual spaces, I can feel my adolescent self eye-rolling at me across the decades
These little wonders will give you a much-needed boost, and this is the perfect time to practice. Go on, you only need 10 minutes, says Guardian columnist Emma Brockes
Electric toothbrushes promise healthier teeth and gums and can transform your oral hygiene. We put more than 20 models to the test to reveal the best for every budget