B vitamins are water-soluble and because they do not get stored in the body, we humans depend on regular intake of them. B vitamins work in synergy in a highly complicated teamwork setup. They take part in most of the body's enzymatic processes, some more actively than others. The uptake of B vitamins depends on gastric acid and digestion.

- and what can we do when we cannot sleep?

Sleep disorders are common in the western world, and many people find that the problem gets worse when we shift to daylight saving and get an extra hour of light in the evening. It can be difficult to fall asleep when it is still light outside, and this may even be a stress factor for those people who need to get up early the following day. Getting just one hour less of sleep can affect your concentration, mood, heart function, fertility, and a number of other things. Nevertheless, the sleep hormone, melatonin, combined with some practical advice may work wonders for your sleep, and proper sleep is of great importance to your health.

Insomnia is common among cancer patients. Sleep medicine is associated with serious side effects, but research shows that the natural hormone, melatonin, may help improve the sleep quality of cancer patients in several different ways. Melatonin even has cancer-inhibiting mechanisms that deserve a closer look in terms of prevention and treatment.

Melatonin is a natural substance that gets produced in the brain at night. Supplements of melatonin are highly useful for people who suffer from recurrent insomnia or travel across several time zones.

- which may be caused by lack of melatonin and the presence of toxic substances in the brain

Night owls stay up late in the evening and get up late in the morning, and they risk depression, according to a new study. In fact, there seems to be a link between the increasing number of people with disturbed 24-hour rhythm who expose themselves to blue light from computer screens and other devices, and who become depressed. Lack of sleep at night and low levels of the hormone melatonin are a burden to the brain and nervous system in several different ways.

Living in contradiction with the body’s natural sleep-wake cycle may be life-threatening, as shift work reduces the body’s production of melatonin, which controls our sleep pattern and many general physiological processes. However, taking melatonin supplements may compensate for the lowered endogenous production and even for shift work and other disturbances of the body’s sleep-wake cycle.

Three American researchers were awarded the Nobel Prize in Physiology for their discovery of the molecular mechanisms that control our 24-hour rhythm and the ticking of the cellular clocks. Lack of sleep can lead to overweight, type 2 diabetes, cardiovascular disease, Alzheimer’s disease, and cancer, which is why it is vital to get to bed at a proper time. If you have difficulty with falling asleep or cannot sleep through the night, supplements of melatonin serves as a natural sleeping pill that comes in handy.