Young people who use screens before sleeping have more sleep problems Young people (13-18 years) who use light-emitting screens daily in the hour before going to sleep have more sleep problems.
Potassium intake and risk for hyperkalaemia reviewed It is nearly impossible to get an overdose of potassium from natural food sources.
Adequate limit value for pyrrolizidine alkaloids in herbal tea and herbal preparations Pyrrolizidine alkaloids (PAs) are natural toxins occurring in a wide variety of plants, including herbs.