Do not smoke.

Aim to maintain healthy weight range. Keep your BMI at 18.5- 22.9kg/m²s

Have a healthy diet, which is low in fat, salt and sugar and high in fibre. And take at least 2 servings each of fruits and vegetables daily.

Exercise for 30 minutes at least 5 days a week. If you have not been exercising regularly, check with your doctor before you start an exercise programme.

• 2/3 small can of beer (220 ml)
• 1 glass of wine (100ml)
• 1 nip of spirit (30ml)