Losing around 50 to 100 hairs a day is completely normal. However, many people notice an increase in hair loss when seasons start to change, especially in spring and autumn. This rise in shedding is called seasonal shedding.
While this may sound alarming, seasonal shedding is a natural part of the hair growth cycle. Just as trees lose their leaves in autumn and grow new ones in spring, the scalp sheds extra hair during these seasonal shifts to make way for fresh, healthy growth.
Understanding the hair cycle helps you know what is normal and when it might be necessary to take action. Moreover, learning how to care for your hair during these times can help you keep your hair healthy and strong all year round.
The Hair Cycle
Hair growth is a continuous process that occurs in a cycle, divided into four distinct phases. Each hair follicle operates independently, which means every hair in your scalp goes through different stages of the cycle at any given time.
Below is a brief discussion on the four phases of the hair growth cycle:
Anagen (Growth Phase)
This is the longest and most active stage, where hair follicles continuously produce new hair cells. During the anagen phase, the hair can grow about 10 mm (1 cm) per month. For scalp hair, this hair cycle stage typically lasts between 2 and 8 years. But take note that this timeline can still vary depending on different factors, like genetics.
Catagen (Transition Phase)
Following the anagen phase is catagen, or the short transitional stage that signals the end of active hair growth. During this phase, which lasts about two to three weeks, the hair follicle shrinks, detaches from its blood supply, and melanin production stops. Around 1% to 3% of all hairs simultaneously go through this phase.
Telogen (Resting Phase)
Telogen, or the resting period, is when the hair strand remains in the follicle but is not actively growing. This phase can last for about three months.
During this stage, new hairs may begin to form in the follicle, preparing for the next growth cycle. Roughly 10% to 15% of your total hair strands are in this phase at the same time.
Exogen (Shedding Phase)
Exogen is the final stage where individual hair strands are released from their follicles and fall out. This natural shedding makes way for new hair growth, and the process can begin again as the follicle re-enters the anagen phase. Losing around 50 to 100 hairs per day is considered normal during this phase.
Seasonal Hair Shedding: Causes and Simple Solutions
Environmental factors, diet, and hormonal fluctuations are some of the most common causes of hair loss. When the seasons change, shifts in temperature, daylight, and humidity can further disrupt your hair’s natural growth cycle, leading to increased shedding. Such changes, along with other contributors like sun exposure and seasonal allergies, can push more hairs into the resting and shedding phases, leading to more noticeable hair loss.
While seasonal shedding is a normal part of hair renewal and cannot be completely avoided, you can support your hair by treating it gently. Some of the best solutions you can do include:
- Steer clear of harsh chemicals. Harsh chemicals, especially those found in shampoos and conditioners, can weaken hair strands and make them more prone to damage. Avoiding these products is especially important during seasonal changes, when your hair is more vulnerable. Instead, you can use an organic shampoo and hair mask to clean your hair.
- Avoid too much heat. Excessive use of heat styling tools like blow dryers, straighteners, and curling irons can dry out and damage your hair, making it more fragile and prone to breakage. During seasonal changes, when your hair is already more vulnerable, limiting heat styling helps maintain hair strength and reduces unnecessary shedding. Whenever possible, opt for air drying or use heat protectant products to shield your hair from damage.
- Choose loose hairstyles. Hairstyles that pull tightly on your hair can strain hair follicles and lead to hair loss over time. Choosing looser styles will allow your scalp to breathe and reduce unnecessary tension on your hair.
- Maintaining a balanced diet. A nutritious and balanced diet filled with proteins, vitamins, and minerals can support healthy hair growth. Eating well ensures your hair receives enough nutrients to stay strong and vibrant during seasonal shifts.
- Caring for your scalp. Regular scalp care – including gentle massages, moisturising treatments, and using nourishing hair serums – helps improve blood circulation and keeps the scalp healthy. A well-nourished scalp creates the ideal environment for hair to grow and helps minimise seasonal shedding.
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