Hair can go through quite the transformation during and post-pregnancy. "During pregnancy, women have an increase in hormones that provide a rich environment for growing a new being," notes Michelle Blaisure, Bosley Professional Strength Certified Trichologist and Product and Technical Specialist. "These same hormones often keep hair actively growing longer than normal with many women noticing a thicker more luxurious head of hair during pregnancy. Once they give birth this level of hormones declines, leading to a sudden, excessive shedding of hair for several months." However, Blaisure says this often self-corrects.
Change of Seasons
Convinced your hair is thicker in the winter than it is in July? You might not be wrong. Blaisure says that you have more hair growth from January to February and less growth (plus more shedding) in the summer months of August and September. From an evolutionary perspective, she says this makes sense because you'd need less hair in the summer to stay warm. "Daylight plays a role as signals are transmitted to the follicle via the hypothalamus due to exposure to longer hours of sunlight—communicating that there is less need for hair growth during this time," she adds.
Wrinkles and fine lines might start to pop up around your mid to late 30s, and that's the same time your hair begins to age, according to Blaisure. "Studies show that slowly the hair density and diameter changes with age with about 50 percent of women having noticeable loss by age 50!"
Your diet can directly affect the growth of your hair. For example, Blaisure explains that when carbs are greatly reduced for prolonged periods of time, more shedding is typically seen. Sticking to a well-balance, nutrient-rich, and healthy diet, as will caring for your hair with proper products and limiting stress from heat styling and coloring can help. She recommends Bosley Professional Strength Healthy Hair Vitality Supplements ($35; ulta.com) to ensure you're getting the necessary balance for healthy hair.
While these situations are common, you should always consult with your doctor if you have any concerns over the amount of hair you're losing or your current health.
This article originally appeared on InStyle U.S.