Ask Dr Libby
Email your questions for Dr Libby to firstname.lastname@example.org. Please note, only a selection of questions can be answered. morning and then you do your high-intensity exercise for 40 minutes. What do the other 15 hours of your day look like? If you spend most of your day stressed or in a rush, the intense exercise will just be an extra 40 minutes that you are in what I like to call the ‘‘red zone’’ (sympathetic nervous system dominance).
If this is the case for you, then I would encourage focusing on gentler movement such as yoga, tai chi or walking. If this doesn’t
Do some resistance training as you age to maintain or build muscle mass.