In my recent studies, I've found that vaccinations play a crucial role in preventing tuberculosis (TB). The BCG vaccine, in particular, is commonly used worldwide to protect against severe forms of TB in children. While it may not always prevent people from getting the disease, it can significantly lower the risk and severity. Vaccinations also help to control the spread of TB, making it a vital tool in our public health toolkit. It's clear that getting vaccinated is an essential step in our ongoing fight against this contagious disease.

In my recent research, I delved into the role hormones play in causing nausea and vomiting during pregnancy. It's fascinating to learn that pregnancy hormones, specifically human chorionic gonadotropin (hCG) and estrogen, are largely to blame for this discomfort. These hormones surge during early pregnancy and can stimulate the part of the brain that controls vomiting, leading to morning sickness. While it can be tough, remember this is typically a sign of a healthy pregnancy. It's always important to seek medical advice if the vomiting becomes severe, as it could be a condition called hyperemesis gravidarum.