What makes 52 Hertz so compelling a study subject is that large baleen whales (like blue and fin) communicate at a frequency range that ends at less than half the 52 Hz range (typically 15 to 25 Hz) which explains why the whaleâs calls go unanswered â no other whale (it seems) can hear it.
Also, many people are eating primarily vegetarian diets, and iron is less available for absorption from vegetable sources. The RDA for iron in a vegetarian man or post-menopausal woman is 14 milligrams per day, compared with 8 milligrams with a mixed diet. Thus, in attempts to make healthy diet changes, many people are ending up with too little iron. The risks of iron deficiency are many. Inadequate iron is one of the major causes of anemia. It can also be seriously harmful to the immune system and lead to both cardiovascular and neurological complications.
This amount is less than half of the iron required by women between 19 and 50 years old, and three times less than the amount of iron needed daily by a pregnant woman. The tolerable upper intake level of iron for men over 19 years old is 45 milligrams per day. This means that a man can consume up to 45 milligrams of iron regularly each day without experiencing adverse side effects.