Does coffee cause dehydration?
It is often suggested that coffee causes dehydration. This is because coffee contains caffeine, which has a dehydrating effect. However, coffee also contains fluid which has a hydrating effect. Therefore, it can be questioned if coffee intake really causes dehydration.
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How much training is needed to avoid loss of muscle mass gains?
Gaining muscle mass is a slow process. However, muscle mass can be lost quickly during muscle disuse, for example during prolonged bed rest or when in a cast. A less extreme example of muscle disuse is detraining (i.e. training less or not at all). How fast do you lose muscle if you stop training or when training volume is reduced?
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Does female presence affect testosterone levels in men?
Testosterone is commonly known as the male hormone (females have testosterone as well, but at lower concentrations). Testosterone is associated with certain behaviors, such as being socially dominant, aggressive, and sexually aroused. Because of its association with sexual arousal, it can be speculated that females influence testosterone levels in men.
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What is the preferred type of exercise when dieting?
Dieting is often combined with aerobic exercise (i.e. cardio) with the aim to lose as much fat mass as possible. Resistance exercise is recommended to prevent some of the muscle mass loss that typically occurs during a diet. But what type of exercise, or combination, has the most beneficial impact on body composition during a diet?
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Does caffeine improve exercise performance for everyone?
Caffeine has been shown to improve exercise performance. Therefore, caffeine is a popular supplement among athletes.
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