How many cups should we drink daily?

What we need to know is what "dose" is effective? Some studies have not found beneficial effects and this has been put down to too low a dose of black tea. We need to know the "physiologically relevant dosage". We are looking for long-term persistent results, not just directly after drinking tea.

The Anti-Inflammatory Benefits of Exercise - Easier Than You Think - @BODYAGEBUSTER Fitness After 50, Living Longer Better

The Anti-Inflammatory Benefits of Exercise - Easier Than You Think

19/3/2020

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20 minutes can serve for anti-Inflammatory

Viruses cause inflammation.

An over-exuberant inflammatory response characterises both coronavirus disease 2019 (COVID-19) and severe acute respiratory syndrome (SARS).

Moderate exercise helps fight the inflammation.

In particular, exercise fights age-related inflammation. Cardiovascular disease, diabetes, osteoporosis, and several other chronic diseases - are now known to be strongly linked to inflammatory processes.

Exercising has been found to reduce chronic low-level inflammation i.e. exercise keeps us healthy and helps minimise the negative effects of age-related inflammation.

Older people benefit as well

For along time it was not known if exercise could benefit the inflammation response of older people. Some thought that exercise might stress older people and raise their level of inflammation.

However, a research paper published in 2007 in the American Journal of Lifestyle showed that exercise had anti-inflammatory effects in healthy older subjects - subjects with coronary heart failure and coronary artery disease, breast cancer survivors, subjects taking beta-blockers, and those with metabolic syndrome.

The researchers concluded therefore, that neither age nor health status, appear to limit the ability of exercise training to reduce inflammation.

That's good news!

What kind of exercise is best?

The other good news was that the research showed that older people (65+) who exercised could boost their anti-inflammatory response to a higher level than younger people who were not active (here, Figure 3).

What kind of exercise is best?

Some research studied intense exercise e.g. cycling exercise (80% VO2 max; 30 minutes). That's too hard for most of us, and not something we can do regularly.

In 2017, research published in the journal Brain, Behavior and Immunity, investigated the benefits of 20-minute exercise sessions on the body’s immune system.

Led by Suzi Hong, Ph.D., from the Department of Psychiatry and the Department of Family Medicine and Public Health (University of California-San Diego School of Medicine) researchers found that moderate exercise resulted in improvements in systemic inflammation.

Our study shows a workout session does not actually have to be intense to have anti-inflammatory effects. Twenty minutes to half an hour of moderate exercise, including fast walking, appears to be sufficient. Feeling like a workout needs to be at a peak exertion level for a long duration can intimidate those who suffer from chronic inflammatory diseases and could greatly benefit from physical activity.
- Suzi Hong

Walking is a convenient and effective option

In January 2020, a paper in the Frontiers in Physiology concluded that "moderate exercise or vigorous exercise with appropriate resting periods can achieve maximum benefit".

The 2020 study tested people using treadmills.

At the moment it's not a good idea to go to the gym, so a treadmill is out unless you are lucky enough own one.

Walking is a good option.

Walking is always something worth doing anyway, so all the more reason to make it part of your regular routine.

A 20 minute walk is just a couple of kilometres, or miles (roughly).

I make it a point to walk 5km every day whether I do other exercise or not. Right now, I am not going to the gym, so I run more.

If I run in the morning then I walk 5km in the evening, and vice versa.

In any case, walking this distance every day should be a minimum daily exercise when we are older. More exercise ("higher levels of physical activity") are associated with lower markers of inflammation - so ramp it up!

A fast walk, as recommended by the 2017 study, is at about 100 steps per minute.

Ramp it up - walking progressions

Here are some progressions that you can apply to walking-as-exercise:

Firstly, ramp the pace up to around 120 steps / minute.
Secondly, when you are on a rise or upward gradient, push harder until you hit the top, and then slow down a little - say 20% - for an active recovery.
Divert up stairs and ramps that cross your route (one of my routes has a 100-stair descent to the beach - I walk along the beach and then up the 100 stairs back to my walking track).
Skip for 20 metres each couple of hundre metres, this is a great boost.
Walk backwards for 20 metres now and then (when you can do it safely).

Adding these progressions will raise the intensity, and, according to the current science, this will increase the anti-inflammatory effects of exercise for you.

Anti-inflammatory is a complex word - part of the meaning is "a reduced incidence of infection", and walking regularly will bring you that benefit. That's something we should all seek to achieve at the moment.

Outdoor walking - contact with nature - also reduces our stress, which we can all enjoy..

Good luck.

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