Give your eyes a rest 

Do your eyes ever feel achy at the end of the day? If you spend a lot of time at the computer or staring at your phone, you may forget to blink — and that can tire out your eyes.  

Try using the 20–20–20 rule throughout the day: every 20 minutes, look away from the screens and focus about 20 feet in front of you for 20 seconds. This reduces eyestrain and helps your eyes (and you!) feel better at the end of the day.