Why are hCG levels higher in the morning?

There are a few reasons why hCG levels are higher in the morning.

First, hCG is produced by the developing placenta, and the placenta produces more hCG at night. This is because the placenta is more active at night, when the mother's body is resting.

Second, the kidneys filter out hCG more quickly during the day. This means that the hCG levels in the urine are higher in the morning, when the kidneys have had more time to filter out the hCG.

Finally, the body's metabolism is slower at night, so the hCG levels in the blood are higher in the morning. This is because the body is not burning off as much hCG at night.

As a result of these factors, hCG levels are typically highest in the morning, and they gradually decline throughout the day.