Q. Why do we vomit?
Doctor Answer is medically reviewed by SecondMedic medical review team.
Vomiting is an important defense mechanism for the body, usually triggered when something that doesn't agree with us gets into our system. It's a way for our bodies to expel toxins and stop them from doing harm. This biological response can be activated in various ways, such as by disease-causing germs, certain medications, or food poisoning.
When the body senses something foreign or potentially harmful, it triggers a reflex arc known as the vomiting center which involves both the central nervous system and enteric nervous system. This reaction stimulates stomach cells called chemoreceptor trigger zones (CTZs) to secrete neurotransmitters like dopamine and serotonin which cause coordinated contractions of your abdominal muscles that force material out of your stomach in a technique referred to as peristalsis.
Once activated by stimuli like medication or food poisoning, the vomiting center is then reinforced by other parts of the brain due to nausea signals sent via pathways including ones connected through structures like the trigeminal nerve and solitary tract nucleus. Additionally other bodily fluids can act on this network causing symptoms such as salivation in what’s known as conditioned taste aversion learning – where we associate certain tastes with being sick after experiencing nausea upon its ingestion before . When these reactions are repeated over time it helps reinforce our hesitancy towards certain smells or flavours even more so if they were related to previous sicknesses experienced .
Overall it’s clear why vomiting exists within our biology - it gives us an emergency eject button from anything we put into ourselves that may not agree with us , helping protect us from further harm .
Q. Hello Doctor, from past 3 weeks I have too much dandruff problem and it cause hair loss will you suggest any best solution for this?
Doctor Answer is medically reviewed by SecondMedic medical review team.
Answered by Secondmedic ExpertDealing with excessive dandruff leading to hair loss can be frustrating, but there are effective ways to address this issue. Here's what you can do:
1. Switch to a Gentle Shampoo: Opt for shampoos specifically designed for dandruff, containing ingredients like ketoconazole, zinc pyrithione, coal tar, or selenium sulfide. Use these shampoos regularly to reduce dandruff buildup.
2. Scalp Massage: Gently massage your scalp while shampooing to help remove flakes and improve blood circulation, which can promote healthier hair growth.
3. Avoid Hot Water: Wash your hair with lukewarm water instead of hot water, as hot water can dry out your scalp and worsen dandruff.
4. Balanced Diet: Ensure you're eating a balanced diet rich in vitamins and minerals essential for healthy hair and scalp, such as omega-3 fatty acids, zinc, and B vitamins.
5. Manage Stress: Stress can exacerbate dandruff problems. Practice stress-relief techniques like meditation, yoga, or regular exercise to help manage stress levels.
6. Apple Cider Vinegar Rinse: Consider using diluted apple cider vinegar as a rinse after shampooing. It can help restore the scalp's pH balance and reduce dandruff.
7. Consult a Dermatologist: If the issue persists despite trying home remedies or over-the-counter solutions, seek advice from a dermatologist. They can provide a personalized treatment plan tailored to your specific scalp condition.
Remember, consistency is key when dealing with dandruff. Give these remedies some time to work, as immediate results might not always occur. It's essential to find what works best for your scalp, so don't get discouraged if you don't see immediate improvements.
Taking care of your scalp health not only addresses dandruff but also aids in reducing hair loss associated with this issue. Feel free to incorporate these tips into your routine and observe how your scalp responds. If the problem persists or worsens, seeking professional guidance is always recommended.
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