Tag Archives: Exercise

Research Preview: Nature Magazine – March 9, 2023

Volume 615 Issue 7951

nature MagazineMarch 9, 2023 issue:

Sims-style ‘digital twin’ models can tell us if food systems will weather crises

From COVID-19 to the war in Ukraine, virtual models could inform global food policy before emergencies unfold.

Big bats fly towards extinction with hunters in pursuit

Human hunt at least 19% of bat species worldwide — especially flying foxes, which can have wingspans of 1.5 metres.

Close-up of a Mauritian flying fox resting upside-down on a banana plant.
The Mauritian flying fox (Pteroptus niger). As relatively large bats, flying foxes are hunted more heavily than other species. Credit: Fabrice Bettex Photography/Alamy

Large tropical bats with narrow home ranges are disproportionately likely to be hunted by humans, according to a global analysis of 1,320 bat species — nearly all of the 1,400 known to science1.

How to stop the bird flu outbreak becoming a pandemic

From tracking the disease’s spread in wild birds to updating human vaccines, there are measures that could help keep avian influenza in check.

A veterinarian injects avian flu vaccine into a goose in Taiyuan, Shanxi Province of China.
A goose being vaccinated against avian influenza in China.Credit: Wei Liang/China News Service/Getty

Fears are rising about bird flu’s potential to spark a human pandemic, as well as its destruction of wildlife and farmed birds. An 11-year-old girl tragically died in Cambodia last week after catching avian influenza. That followed reports earlier this year of the virus spreading from mammal to mammal through a mink farm, and causing mass mortality in Peruvian birds and sea lions. Since the beginning of 2022, more than 50 million poultry birds in the United States, and a similar number in Europe, have either died of the disease or been killed in efforts to stem its spread. Can bird flu be stopped, and if yes, how?

Research Preview: Nature Magazine – March 2, 2023

Volume 615 Issue 7950

nature – March 2, 2023 issue:

Custom-built drug shows its powers against tuberculosis

An upgraded antibiotic holds promise for treating tuberculosis strains that are resistant to existing treatments.

Kevlar helps to make one tough synthetic tendon

A water-filled gel has the strength and elasticity of natural tendon.

Big dino, little dino: how T. rex’s relatives changed their size

‘Impressive’ fossil analysis reveals why some dinosaurs were massive but their cousins were tiny.

Research Preview: Nature Magazine – Feb 23, 2023

Volume 614 Issue 7949

nature – February 23, 2023 issue:

Exercise triggers fat breakdown at some times of day and not others

Adipose tissue in mice dumps fat during early workouts rather than late ones.

Cities worldwide claw vast amounts of land from the sea

China, the United Arab Emirates and other countries are adding area by converting wetlands and shallow waters into solid land.

Genome editor tackles disease that can cause sudden death

Scientists repair a mutation that causes heart-muscle abnormalities and can kill without warning.

Health: American Heart Association Updates Its ‘Optimal Checklist’ (2022)

October 2022 – The American Heart Association (AHA) recently revised its checklist for achieving optimal heart health, introducing its new Life’s Essential 8. The list replaces the AHA’s decade-old Life’s Simple 7.

Sleep health is the new addition to the cardiovascular health scoring tool, which now advises that adults get seven to nine hours per night. The organization updated four of the categories:

  • Diet: More emphasis was given to following heart-healthy diets like the DASH and Mediterranean.
  • Nicotine exposure: Secondhand smoke and vaping were added as risk factors.
  • Blood lipids: People now can get a non-fasting blood sample that measures total, HDL, and non-HDL cholesterol. Non-HDL cholesterol can provide similar risk information as LDL cholesterol.
  • Blood sugar: Measurements now include hemoglobin A1c, a key component to assessing type 2 diabetes risk.
  • Three categories were unchanged:
  • Physical activity: The optimal weekly level is at least 150 minutes of moderate activity or 75 minutes of vigorous activity.
  • Body mass index (BMI): A BMI of 18.5 to 24.9 is ideal for heart health.
  • Blood pressure: Levels less than 120/80 millimeters of mercury (mm Hg) remain optimal. Stage 1 hypertension is 130 to 139 mm Hg for systolic pressure (the first number) or 80 to 89 mm Hg for diastolic pressure (the second number).
  • You can calculate your heart health score at mlc.heart.org. The guidelines were published online June 29, 2022, by Circulation.

Read more

Brain Health: The Benefits Of Endurance Exercise

Aging: The Importance Of Cardiovascular Exercise

Health: Preventing Deadly Falls Among The Elderly

Atherosclerosis: Stress, Lack Of Sleep & Exercise And Poor Diet Raise Risks

Swirski acknowledged that “there is no question” that genetics play a role in cardiovascular health, but in the last several years, four risk factors — stress, sleep interruption or fragmentation, diet, and sedentary lifestyle — have been clearly identified as contributing to atherosclerosis, commonly referred to as hardening of the arteries, which can lead to a variety of complications, including death.

Infographic: What Is Cardiac Rehabilitation?