Browse evidence-based analysis of health-related claims and assertions
Pre-exhaustion training makes your workout sessions about one-third shorter than regular training methods.
Quantitative
When you do a special workout called pre-exhaustion, you get tired faster and end up lifting less total weight compared to regular workouts.
Causal
When you do exercises back-to-back with little rest (pre-exhaustion training), it feels harder than doing exercises with normal rest breaks (traditional training).
Two different ways of lifting weights—pre-exhaustion and traditional—both help you get stronger and last longer during exercise about the same amount.
Doing all your sets for one exercise before switching to the next might build a tiny bit more muscle than mixing exercises up, but it's such a small difference we can't be sure it's real.
Doing single-muscle exercises first makes you tired, so you can build muscle with lighter weights on bigger exercises.
Doing a special warm-up before lifting weights lets you finish your workout faster while still building just as much muscle.
Doing a single-muscle exercise before a bigger workout makes your muscle work harder and grow more because it gets tired first.
Focusing too much on cutting out sugar might do more harm than good, especially for cancer patients, and experts should focus on overall healthy eating and well-being rather than just avoiding sugar.
Eating sugar doesn't directly make cancer grow faster in people. Cancer cells do use sugar differently, but that's just how they work, not because of what we eat.
Descriptive
Sugar might raise cancer risk by messing with your body's insulin and causing inflammation, not by directly feeding cancer cells like many people think.
Mechanistic
Some lab tests show sugar might help tumors grow in artificial settings, but this might not happen in real human bodies under normal conditions.
Studies looking at sugar in our diet and cancer mostly find no clear link. When a link is found, it's usually only in people with certain health conditions, and it often goes away when you account for things like body weight and how much food people eat overall.
People with both low and high starting levels of a blood fat called lipoprotein(a) saw about the same amount of decrease when treated, with drops of 14% and 11% respectively.
Drinking sugary drinks with glucose or fructose for 10 weeks lowered a type of cholesterol called lipoprotein(a) in adults—glucose drinks by about 15% and fructose drinks by about 11%.
Drinking sugary drinks for 10 weeks, where they make up a quarter of your daily calories, lowers a type of cholesterol called lipoprotein(a) by about 13% in overweight and obese adults, no matter the size of the particles.
Cells from mice given hormones grew into big, spreading cancers even without extra help when moved to other mice, but cells from mice not given hormones stayed harmless and didn't cause cancer.
In a study with mice, giving them certain hormones caused cancer cells to spread to other parts of the body like the lungs and liver, but mice that didn't get the hormones didn't have this spread.
When mice were given certain hormone implants, they got cancerous tumors with messy tissue, but mice without the treatment kept healthy, organized tissue.
When scientists gave mice special hormone treatments, the tissue samples from those mice grew bigger and heavier compared to tissue from mice that didn't get the treatment. This shows hormones can make tissues grow more.
When scientists gave hormone implants to special lab mice with human prostate cells, the mice's hormone levels went way up compared to mice that didn't get the treatment.
Eating ice cream or frozen yogurt doesn't seem to raise or lower your chances of getting pancreatic cancer, according to a study.
Correlational
Adding sugar to your coffee or tea doesn't seem to raise your chances of getting pancreatic cancer, according to a study that compared people who use a lot of sugar to those who use very little.
Eating sweets like candy, cookies, and cakes doesn't seem to affect your chances of getting pancreatic cancer, according to this study.