Page 3 â Measuring time in different cultures. Measuring time. Scientifically, the year is a complete cycle of seasons. A year is when the earth completes one full orbit of the sun. Its length is measured from one spring equinox to the next spring equinox. Measuring the time of year was important to most people. Knowing the season was vital when deciding to plant and harvest crops as well as managing livestock in colder climates.
Experts have believed for a long time that pregnancy weakens a womanâs immune system, making her more susceptible to illnesses like the flu. However, research released just before the start of this flu season indicates that, in the case of the flu, the opposite may be true during pregnancy.
During pregnancy changes occur in your immune system, heart, and lungs. Additional stress is put on the heart and lungs as the lung capacity decreases and heart rate increases during pregnancy. During this time the immune system is also naturally suppressed making you more susceptible to the flu during pregnancy.Getting the flu while pregnant can lead to pneumonia and even hospitalization, so it is important to do what you can to prevent getting the flu during pregnancy. It also places your baby at risk.uring this time the immune system is also naturally suppressed making you more susceptible to the flu during pregnancy. Getting the flu while pregnant can lead to pneumonia and even hospitalization, so it is important to do what you can to prevent getting the flu during pregnancy. It also places your baby at risk.