Medications altered by grapefruit include highly prescribed cholesterol-lowering statins, some key heart drugs, and certain anti-psychotic and pain medicines. Thatâs because grapefruit contains a chemical that interferes with an enzyme that controls how drugs are absorbed through the intestines, resulting in a potentially toxic dose of medication.
Yttrium is mostly dangerous in the working environment, due to the fact that damps and gasses can be inhaled with air. This can cause lung embolisms, especially during long-term exposure. Yttrium can also cause cancer with humans, as it enlarges the chances of lung cancer when it is inhaled.
Exposure to lead is dangerous because this heavy metal is a toxin which can cause severe health problems and death at high levels of exposure. Humans have been working with lead for centuries, and giving themselves lead poisoning at the same time due to a lack of understanding about the risks of lead exposure.