It’s beyond question that regular exercise is good for us, so why is it so often a struggle to summon the energy and motivation to get moving?

After all, it’s impossible to imagine how all of us aged over 50 are going to make the most of our extra decades if weren’t not in good physical and emotional condition.

Of course, exercise can be a slog, and we’re busy, we’re tired, we’re lazy, etc, etc. But just imagine if all it took was 7 minutes a week to get the essential aerobic exercise we need for good health.

Think HIIT – high intensity interval training.

Renowned UK doctor and BBC broadcaster Michael Mosley is famous for using his media channels to conduct medical research, very often on himself.

Dr Mosley is a Switched ON favourite and in this video, he tries a HIIT program for 6 weeks. And the results …

No one explains our bodies and all the bits and pieces therein better than the man himself. Over to you, Dr Mosley.