Recognize Warning Signs These Skin Changes May Indicate Advanced Liver Cirrhosis
Tiredness, nausea, jaundice? Why liver cirrhosis is often recognized late - and which signs can give early warning.
Exercise on the pull-up bar Why You Should Train Dead Hang and How Long You Should Be Able to Hang for
The dead hang is an underestimated strength exercise. FITBOOK explains what it does and what you should bear in mind.
Caries Through Training? Why Athletes Often Have Bad Teeth — and What Helps
Iso drinks and bars are popular - but many athletes unknowingly risk damaging their teeth. What athletes should now look out for.
Study Shows How the Combination of Intermittent Fasting and Training Affects Body Fat and Muscle Mass
Is it a good idea to combine training with interval fasting if you want to lose body fat but not muscle mass?
Tips from a Personal Trainer How to Do Twice as Many Burpees in 30 Days as You Can Now
Do you finally want to do more burpees? With our expert's tips, you can double the amount of burpees you can do within 30 days!
Plan for the Gym Time-Saving! How to Train Effectively on Just 2 Days a Week
With tips from bikini athlete Lisa Maus, you can train effectively even on just two days a week.
Analysis Result Surprises The Link Between a Meat-Free Diet and Depression
A meta-analysis wanted to know whether a meat-free diet reduces the likelihood of developing depression. The results.
Personal Trainer Explains How Pull-Ups with a Band — How to Learn Real Pull-Ups
Pull-up beginners can use a band to help them learn pull-ups. FITBOOK explains how and with which exercises.
An Appeal to Chefs Dear Restaurants, Please Leave the Sugar out of Your Food!
In restaurants, sugar is a popular ingredient in dishes. Nuno Alves lives sugar-free and would like to see a return - and transparency.
Health ›
According to a Study Certain Sleep Routines Increase the Risk of Depression
A study on sleep patterns and depression showed that so-called night owls are more likely to suffer from the mental disorder.
Researchers Identify This Treatment Increases Survival Rate for Colorectal Cancer by 63 Percent
Researchers have identified a treatment that can increase the chance of surviving colorectal cancer — one of the most common forms of cancer.
H5N1 Is the Risk of a Bird Flu Pandemic Increasing? This Is What an Expert Says
There are indications that the bird flu virus is mutating and being transmitted from humans to animals. Could the next pandemic happen?
Rampant in Several Federal States How Dangerous Is Tularemia for Humans?
Rabbit plague has been detected in Germany. What dangers exist and why contact with wild animals is risky.
Study The Connection Between Weak Chewing Muscles and Physical Performance
According to a study, weak chewing muscles can affect physical performance in older adults. FITBOOK analyses the results.
Muscle Occlusion Training What is Blood Flow Restriction Training, and How Dangerous Is It?
Blood Flow Restriction or Kaatsu is a training method in which the blood flow in the arms or legs is restricted. FITBOOK explains it.
Study Not Just Smoking! Diet Can Promote Lung Cancer
In addition to smoking as a major cause, other lifestyle factors can promote the development of lung cancer - including diet.
Analysis Shows 21 Million Children Worldwide Lack an Important Vaccination
The WHO advises parents to vaccinate children against a number of diseases, including measles, but there is a wide vaccination gap globally.
Tips from Experts When Cholesterol Levels Become Critical — and How to Lower Them
An expert explains the risks of elevated blood lipid levels and gives tips on how to lower high cholesterol levels naturally.
Nutrition ›
Ideal for strength athletes 3 Protein-Rich Air Fryer Snacks
A fitness-oriented diet does not include fried foods - actually! However, you can bake protein-rich air fryer snacks.
Expert Assessment Air Fryer or Oven — Which Cooking Method Is Healthier?
Is cooking in a hot air fryer healthy? An expert knows whether an air fryer is worthwhile if you already have an oven.
According to a Study Dairy Products Are Good for the Gut — Apparently with One Exception
A study has produced interesting findings on the influence of dairy products such as cheese on bacterial colonization in the gut.
Nutrition Expert Explains Why Quark with Linseed Oil Can Help You Lose Weight
The oil-protein diet was developed many years ago. And quark with linseed oil does indeed have benefits for weight and muscles.
Experts Clarify Is It Better Not to Store Eggs in the Fridge?
Do you store eggs in the fridge? Whether this is necessary and where the best place is, we reveal
Expert Weighs In An Overlooked Fish Species That Is Extremely Healthy
Leave the salmon to one side: nutrition expert Prof. Dr. Nicolai Worm explains why mackerel is even more healthy.
EU Regulation How Can You Tell That Insects Are an Ingredient in Food?
Which insects are actually permitted as food in the EU? And how can you tell if food has insects as an Ingredient?
Nutrition Expert Explains This is How Healthy Carrot Juice Is
What ingredients actually make carrot juice so healthy? And can it really give you a tanned complexion?
According to Studies Certain Snack Should Be Able to Prevent Sore Muscles
According to studies, almonds can not only help build muscle, but also prevent muscle soreness. FITBOOK presents the study findings.
Fitness ›
Indoor Rowing What Makes Training on the Rowing Machine So Effective and What You Should Look Out for
Training on the rowing machine, also known as indoor rowing, is an effective strength and endurance workout. The right technique is key.
Oscar Winner How hard Mikey Madison Trained for Her Role as a Stripper in "Anora"
Actress Mikey Madison trained hard and overcame many an obstacle to make a convincing appearance as a pole dancer in the film "Anora".
Impressive Pop Star Harry Styles (31) Runs the Tokyo Marathon in an Amazing Time
With a time of 3:24:07 at the Tokyo Marathon 2025, pop star Harry Styles is among the top 15 percent. How did he do it?
Instead of a Steroid Injection Man Eats 900 Eggs to Build Muscle — How an Expert Assesses the Experiment
A YouTuber eats 900 eggs in a month to build muscle. What a nutrition expert thinks of the experiment.
Strength Exercise How Many Calories do Push-Ups Burn?
How many calories do you burn doing push-ups? That depends on different parameters. FITBOOK has done the math.
Expert Explains Effective Yoga Exercises for a Toned Bottom
Yoga can be used to specifically train the buttocks, achieving a toned bottom. Yoga teacher Nina Ponath explains how.
Research Context Does a Vitamin D Deficiency Affect Muscle Strength?
Too little sun not only makes you sad, it also makes you limp. Studies show that vitamin D deficiency affects muscle strength.
Expert Explains How to Optimally Prepare for Running by Skipping
Skipping is full-body workout and great warm-up before a running. FITBOOK reveals the benefits that can be directly transferred to running.
Canadian Study Are Young People with Physically Active Parents Healthier?
A study has investigated whether physically active parents can influence the health and behavior of their children and adolescents.
Mind & Body ›
Study What Happens in the Male Brain During Sex? Researchers Make Astonishing Discovery
What happens in the male brain during sex? A mouse study of all things provides exciting clues. What they mean.
Social Media Trend What Is Behind "Sleepmaxxing" and What Are Its Benefits?
"Sleepmaxxing" stands for the optimization of sleep quality and a social media trend. FITBOOK spoke to an expert about it.
Study Eating These Fruits Can Reduce Your Risk of Depression By 20 Percent
Diet can influence the risk of depression — according to a study, citrus fruits can reduce this risk. FITBOOK analyses the results.
Not Just Genetic Possible Reasons for Gray Hair at a Young Age
Why do some people go gray early? Researchers are on the trail of a cause for sudden gray hair that has nothing to do with genes.
Study on Mice Can an Ingredient in Tomatoes Alleviate Depression?
Researchers set out to find an alternative treatment for depression. They studied the influence of tomatoes on depression.
Personality Types 3 Psychological Profiles That Determine Your Risk of Dementia According to a Study
Can character traits influence health? According to a study, there are 3 personality types that determine your risk of dementia.
Psychological Origin The Reason People Touch Their Faces So Often
Even if we don't want to, we unconsciously touch our faces all the time. The reasons are psychological. Read more on FITBOOK.
It's about attention Researchers find new sign that may indicate psychopathy
Researchers analyzed 3 psychopathic traits in volunteers. A picture shown afterwards revealed a sign of psychopathy.
Neurologist explains Why do you sometimes have a headache after crying?
Are you familiar with the phenomenon of having a headache after crying? A well-known hormone probably plays an important role in this.