Lemons are an excellent source of vitamin B6, iron and potassium, and a very good source of dietary fibre and vitamin C. They also contain calcium, copper, folic acid, magnesium, manganese, phosphorus and zinc.

Lemons are rich in bioflavonoids, which protect against damage from free radicals, act as natural antibiotics and may help prevent heart disease and cancer. They are also anti-bacterial and anti-septic, making them good for mouth ulcers, canker sores and sore throats. The pulp and skin contain pectin, a compound which lowers cholesterol.

2. Repeat the Stomach Vacuum

Strengthen your lower back muscles that support your spine with the “stomach vacuum”.

1. Exhale. Suck in your gut.

2. Maintain the contraction for 10 to 20 seconds.

3. Repeat 10 to 15 times, as often as you like throughout the day.

3. Sing

When we sing instead of speak, we are practicing intonation, melody line, and crescendo, which gives us a broader vocabulary to express ourselves. We stand up straighter, breathe better and raise out spirits. Singing, particularly in a chorus, seems to benefit the elderly particularly well.

From the BBC How singing unlocks the brain