
Health Studies Hub
Your go-to source for daily breakdowns of the latest health, fitness, and nutrition research.
Hidden Visceral Fat Speeds Heart Aging Despite Exercise.
In 2025, Vladimir Losev and a team from the MRC Laboratory of Medical Sciences in London analyzed 21,241 UK Biobank adults, using AI to study body fat via whole-body imaging and heart health through scans. They focused on visceral fat (hidden around organs like the stomach) and its link to heart aging, measured by tissue stiffness and inflammation.
Sleeping In on Weekends Harms Your Health.
In 2023, Daniel P. Windred and a team studied sleep patterns in thousands of adults across multiple cohorts, finding that sleeping in on weekends, called social jetlag, disrupts your body’s internal clock. Each hour of jetlag raises heart disease risk by 11% and worsens mood, obesity, and unhealthy habits like smoking or poor diet. A 2019 study by C.M. Depner showed that catching up on sleep after five short nights still caused 10-15% worse insulin sensitivity and higher calorie intake, leading to weight gain risks.
Beet Juice Lowers Blood Pressure in Older Adults.
In 2025, Anni Vanhatalo and a team from the University of Exeter studied 24 older adults (aged 60-75) in a 2-week trial. Participants drank nitrate-rich beetroot juice (140 mL/day, ~400 mg nitrate) or a placebo juice, and researchers measured blood pressure, oral bacteria, and blood vessel health using standard tests.
Artificial Sweeteners Wreak Havoc on Metabolic Health.
In 2025, Huang-Pin Chen and a team from National Cheng Kung University reviewed studies on low-calorie sweeteners like aspartame, sucralose, and stevia. They examined how these affect metabolism, heart health, cancer risk, and gut bacteria, pulling data from human and animal studies on blood sugar, insulin, and microbiome changes.
Meat, Not Plant Protein, Slashes Cancer Death Risk.
In 2025, Yanni Papanikolaou and a team from McMaster University analyzed data from 15,947 adults in the NHANES III survey. They studied how much animal and plant protein people ate, using food diaries and advanced stats to track links with death from heart disease, cancer, or any cause over years.
Intermittent Fasting Raises Heart Death Risk by 91%.
In 2024, researchers from Shanghai Jiao Tong University analyzed data from over 20,000 U.S. adults (average age 49) in the NHANES survey from 2003-2018, followed until 2019. They compared those eating in an 8-hour window (a common IF method) to those eating over 12-16 hours, adjusting for age, diet, and health factors.
7,000 Steps Daily Boost Health, Slash Disease Risk.
In 2025, Melody Ding and a team from The University of Sydney reviewed 35 studies with over 16,000 adults from 2014-2025. They analyzed how daily step counts affect eight health outcomes, including heart disease, type 2 diabetes, dementia, cancer, depression, falls, physical function, and overall death risk, using data from PubMed and EBSCO CINAHL.
Aspirin Fails to Protect Older Hearts, Increases Bleeding.
In 2025, Rory Wolfe and a team analyzed the ASPREE trial with 19,114 older adults (aged 65+ for US minorities, 70+ otherwise) without prior heart issues, dementia, or disabilities. From 2010–2017, half took daily low-dose aspirin, half got a placebo, with follow-up until 2022 for 15,668 participants. They checked for heart attacks, strokes, and bleeding events.
Even 3,000 Steps Daily Slash Heart Disease Risk.
In 2025, SWM Cheng and a team analyzed data from 36,192 adults with high blood pressure in the UK Biobank. They used wrist trackers to measure daily steps and walking speed for a week, then tracked heart issues like heart failure, heart attacks, and strokes over 7.8 years.
Grass-Fed & Finished Beef Crushes Grain-Fed in Health Benefits.
In a 2019 study from Michigan State University, researchers surveyed grass-finished beef from 12 US farms, analyzing fatty acids, minerals, and vitamins. Farms used all-grass diets, leading to an average omega-6 to omega-3 ratio of 4.1, far better than typical grain-fed beef's 20:1 or higher.
Ultraprocessed Foods Significantly Raise Heart Disease Risks.
In 2025, Maya K. Vadiveloo and a team from the American Heart Association reviewed studies on ultraprocessed foods like chips, sodas, and ready meals. They looked at how these foods, often high in fats, sugars, and salt, affect health in the US where 55% of calories come from them, rising to 62% in youth.
Safflower Flavonoids Cut Heart Damage by Up to 50%.
In 2025, Fajian Ren and a team from Chengdu University of Traditional Chinese Medicine reviewed how flavonoids from safflower, like chalcones and quercetin, work in the body. They looked at many studies on these compounds, found in safflower petals used in traditional medicine for blood flow and pain relief.
How Diet Fuels Fat-Burning Tissues for Better Health.
In 2025, Bruna Bombassaro and team from the University of Campinas reviewed how dietary factors like caffeine, capsaicin, cinnamon, curcumin, resveratrol, and fatty acids (EPA, DHA, oleic acid) activate brown and beige adipose tissues (BAT) to burn calories via thermogenesis.
Pasture-Raised Chicken Enhances Heart and Immune Health.
In a 2024 article from FarmstandApp, researchers highlight the health advantages of pasture-raised chickens compared to conventional poultry. These chickens, raised outdoors with access to grass, insects, and sunlight, yield meat with up to 3x more omega-3 fatty acids, 40% more vitamin A, and 50% more vitamin E, alongside 21% less total fat.
Ear-Clip Vagus Nerve Stimulation Boosts Fitness.
In 2025, GL Ackland and team conducted a randomized, double-blind, crossover trial with 28 healthy adults. They tested a non-invasive ear-clip device delivering gentle electrical pulses to the vagus nerve for 30 minutes daily over one week, compared to a sham device, with a two-week washout period. Exercise capacity (VO2peak), heart rate, breathing rate, and inflammation markers were measured.
High-Phenolic Extra Virgin Olive Oil Boosts Heart Health.
In 2025, Christos Kourek and team conducted a single-blind randomized clinical trial with 50 hyperlipidemic patients and 20 healthy controls at the General Hospital of Messinia, Greece. Patients were assigned to either 20g/day lower-phenolic EVOO or 8g/day higher-phenolic EVOO for 4 weeks. Lipid profiles were measured at baseline and post-intervention.
Dietary Fats Impact Heart and Metabolic Health
In 2025, Éva Szabó from the University of Pécs reviewed 8 studies on how dietary fats affect health. Using trials and meta-analyses, they explored saturated fats (SFAs), trans fats (TFAs), and omega-3s, focusing on obesity, diabetes, heart disease, and gut health in humans and animals.
Ozempic Sheds Fat But May Impact Heart and Lung Health.
In 2025, Zhenqi Liu and team from the University of Virginia reviewed studies on GLP-1 drugs like Ozempic, focusing on their impact on cardiorespiratory fitness (CRF), a key predictor of heart health and longevity. While these drugs drive significant weight loss, they also reduce fat-free mass (25-40% of total weight lost), including vital muscle, raising concerns about long-term health.
97% of Americans Are Deficient in Essential Vitamin K2.
In a review by Dr. John Douillard from LifeSpa.com, drawing on studies like the Rotterdam Study (2004) involving 4,807 adults over 55, vitamin K2's role was examined. K2 activates proteins to direct calcium to bones and away from arteries, preventing stiffness and brittleness. The study found at least 32 mcg daily cut cardiovascular death by 50% and all-cause mortality by 25%.
7,000 Steps a Day Slashes Death Risk by Nearly Half.
In 2025, Melody Ding and team from the University of Sydney analyzed 57 studies with over 160,000 people across multiple countries. They used data from wearable devices like pedometers to track daily steps, comparing health outcomes like death rates, heart disease, dementia, and depression against a baseline of 2,000 steps.