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A muscle strain is a common injury caused by excessive stretching of muscle fibers. What are the causes of muscle strain?

 

Fibre is a plant-based food ingredient that is not digested by the human digestive tract. This property results in its numerous health-promoting roles. What products are rich in fibre?

Testosterone is one of the most important male sex hormones, responsible for, among other things, sexual activity. What lowers testosterone? How to naturally boost hormone levels?

 

Fasted training is physical activity performed before eating, on an empty stomach, and is a highly debated topic in the world of sports and fitness.

 

The way we eat can affect the nervous system and brain function, thereby influencing memory and concentration. How can diet affect brain performance?

 

Flaxseed oil is a natural substance obtained from the seeds of common flax, known for its high content of valuable compounds, including essential fatty acids.

The splits are a spectacular gymnastic position that requires great flexibility and mobility. How to train for the splits? What are the different types of splits?

Potassium is a macroelement that is the most abundant intracellular cation in the human body. Potassium - what does it help? What is potassium in?

Polyols are substances considered sugar substitutes, widely used in the food industry. What are polyols? Are sugar alcohols healthy?

Tennis elbow is a condition characterized by pain on the outer side of the elbow joint. How to treat tennis elbow?