Some conditions get worse over time, so it is important to regularly monitor how they affect your driving, and to take advice from a doctor, pharmacist or other medical professional.
There are some prescription drugs and over-the-counter medicines that can have an effect on the skills needed to drive safely. The best way to find out if the medication they are taking affects their ability to drive safely is to ask for advice from a doctor, healthcare professional or pharmacist.
Driving licences expire at 70 years of age, so when you reach 70, you need to renew your driving licence if you wish to continue driving. You then need to renew it every three years afterwards.