As stocks continue to collapse, could this be the beginning of the end for mackerel fishing?

Mandalay Bay's lead aquarist says the resort's sharks eat better than tourists on the Strip, dining on mackerel, herring and sardines three times a week.

Fatigue that persists despite adequate sleep could signal an underlying deficiency. Vitamin D is crucial for energy metabolism, and low levels can leave you feeling drained and lethargic.