It would become trapped inside for a long period of time, reacting with iron, calcium, and sea water in the rocks to make chalk (known more technically as carbonates).
Instead, in the hour or two before your nap time, eat foods high in calcium and protein, which promote sleep.
相反,在午睡前一两个小时,吃点富含钙和蛋白质的食物,可提高睡眠质量。
3
So eat more brightly coloured fruits and vegetables with meals and avoid drinking tea or coffee with meals or taking calcium supplements at the same time as eating iron-rich foods.