Tag Archives: Exercise Benefits

New Scientist Magazine – October 11, 2025

New Scientist issue 3564 cover

New Scientist Magazine: This issue features ‘Decoding Dementia’ – How to understand your risk of Alzheimer’s, and what you can really do about it.

Why everything you thought you knew about your immune system is wrong

One of Earth’s most vital carbon sinks is faltering. Can we save it?

What’s my Alzheimer’s risk, and can I really do anything to change it?

Autism may have subtypes that are genetically distinct from each other

20 bird species can understand each other’s anti-cuckoo call

Should we worry AI will create deadly bioweapons? Not yet, but one day

Research: New Scientist Magazine – July 27, 2024

New Scientist Magazine (July 24, 2024): This issue features ‘The Smart Guide To Exercise’ – What is the quickest way to get fit?; How much exercise is too much?; What is lost and gained by working out online?; When is the best time to workout?….

What is the optimal amount of exercise and how much is too much?

If your gym instructor is an iPad, what is lost – and gained?

How to use psychology to hack your mind and fall in love with exercise

How fast do we get out of shape and is there a way to slow the loss?

How much exercise do children really need – and what type?

Watch bees defend their nest by slapping ants with their wings

Zombie galaxy came back to life after 20 million years

Chinese nuclear reactor is completely meltdown-proof

Shock discovery reveals deep sea nodules are a source of oxygen

Universe’s missing matter may be explained by galaxies leaking gas

Exercise: Benefits Of HIIT (High-Intensity Interval Training) – Mayo Clinic

Mayo Clinic Division of Preventive Cardiology will be preparing a series of recordings focusing on Cardiovascular Disease states. This is the Exercise Series and this particular one focuses on HIIT and its benefits. Results in physiological adaptations linked to improved health (even with a very small volume of exercise).

Health: ‘Ideal Exercise For The Heart’ (Mayo Clinic)

Mayo Clinic Division of Preventive Cardiology will be preparing a series of recordings focusing on Cardiovascular Disease states. This is the Exercise Series and this particular one focuses on exercise and the heart.

Health: Three Exercise Benefits For The Brain

Memory

Many studies suggest that exercise can help protect our memory as we age. This is because exercise has been shown to prevent the loss of total brain volume (which can lead to lower cognitive function), as well as preventing shrinkage in specific brain regions associated with memory. For example, one magnetic resonance imaging (MRI) scan study revealed that in older adults, six months of exercise training increases brain volume.

Another study showed that shrinkage of the hippocampus (a brain region essential for learning and memory) in older people can be reversed by regular walking. This change was accompanied by improved memory function and an increase of the protein brain-derived neutropic factor (BDNF) in the bloodstream.

Blood vessels

The brain is highly dependent on blood flow, receiving approximately 15% of the body’s entire supply – despite being only 2-3% of our body’s total mass. This is because our nervous tissues need a constant supply of oxygen to function and survive. When neurons become more active, blood flow in the region where these neurons are located increases to meet demand. As such, maintaining a healthy brain depends on maintaining a healthy network of blood vessels.

Regular exercise increases the growth of new blood vessels in the brain regions where neurogenesis occurs, providing the increased blood supply that supports the development of these new neurons. Exercise also improves the health and function of existing blood vessels, ensuring that brain tissue consistently receives adequate blood supply to meet its needs and preserve its function.

Inflammation

Recently, a growing body of research has centred on microglia, which are the resident immune cells of the brain. Their main function is to constantly check the brain for potential threats from microbes or dying or damaged cells, and to clear any damage they find.

With age, normal immune function declines and chronic, low-level inflammation occurs in body organs, including the brain, where it increases risk of neurodegenerative disease, such as Alzheimer’s disease. As we age, microglia become less efficient at clearing damage, and less able to prevent disease and inflammation. This means neuroinflammation can progress, impairing brain functions – including memory.

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