good one KR On Fri, 15 Sept 2023 at 19:06, 'gopala krishnan' via iyer123 < [email protected]> wrote:
> *CULTURAL QA 09-2023-15A* > > *All the below QA are from Quora DIGEST to me on 15-09-2023.* > > *Quora answers need not be 100% correct answers.* > > *Compiled and posted by R. Gopala Krishnan, 79, on 15-09-2023.* > > *Q1 How is hair related to the nervous system?* > > *A1 Ken Saladin, Former professor of histology (microscopic > anatomy) Sep 5* > > *First the anatomy: Each hair is enclosed in a** diagonal tube called the > hair follicle. Each follicle has a tiny muscle with a fancy name, arrector > pili (translation: erector of the hair). Each arrector pili receives a > single motor nerve fiber from the sympathetic nervous system (below right).* > > * Each hair root also has a sensory nerve fiber wrapped around it (below > left), called a hair receptor or hair root plexus.* > > *Now the sensory physiology (left side of figure):** The sensory nerve > fiber around the hair is exquisitely sensitive. Any slight movement of the > hair triggers nerve signals in that fiber: a light touch that moves a hair; > an ant walking across the skin, bending one hair after another; the feel of > a shirt sleeve on your arm; or a light breeze blowing across the skin. > These signals travel up certain tracts of the spinal cord to the brainstem. > * > > *The brain filters out and ignores some of them (such as the feel of your > clothing, usually); it allows others to come to your conscious attention, > like the feel of the ant on your skin; and it triggers automatic reactions > to some of them, without your control. An example of the last of these is > the protective blink reflex, occurring when something like a bit of > wind-blown dirt touches your eyelash.* > > *Now the motor physiology (right side of figure):** In response to > external stimuli such as touch, tickle, or cold, or internal conditions > such as low blood temperature, fear, thrill, or sexual arousal, the > sympathetic nervous system sends signals to the arrector pili muscles. When > those muscles contract, they pull in the direction of arrow (1) in the > figure. That causes the base of the hair follicle to swing in the direction > indicated (2). That makes the shaft of the hair swing up in direction (3). > In other words, the hair stands on end. This reaction is called > piloerection. It also pulls the skin up into a little goose bump. (The > hairs in the drawing are already in the erected position, like those in the > photo below; when relaxed, they would lie down toward the right, closer to > the skin surface, and the follicles would be more diagonal.)* > > *Piloerection of the arm hair. (Wikipedia)* > > *Piloerection is probably of little use in humans, considering our > vestigial body hair, although there’s a little debate about this > (modulation of air currents across the skin). In other mammals, though, it > serves such purposes as retaining heat near the body (cutting down on the > heat-removing breezes close to the skin and trapping a blanket of > body-warmed hair), and making some mammals look larger and more threatening > in aggressive social encounters. Birds fluffing up their feathers in cold > weather is essentially the same phenomenon. (Picture not added)* > > *Q2 What will happen if we eat pomegranate daily?* > > *A2 RG INFORMATION,Sep 9* > > *Eating pomegranate daily can have several potential health benefits due > to its nutritional** content. Pomegranates are rich in antioxidants, > vitamins, and minerals, which may support:* > > *1. Heart health: Pomegranates can help lower** blood pressure and > improve cholesterol levels, reducing the risk of heart disease.* > > *2. Anti-inflammatory effects: The antioxidants in** pomegranates may > reduce inflammation in the body, which is associated with many chronic > diseases.* > > *3. Digestive health: Pomegranates contain dietary** fiber, which can aid > in digestion and promote a healthy gut.* > > *4. Skin benefits: The antioxidants in** pomegranates may contribute to > healthy skin by reducing signs of aging and protecting against UV damage.* > > *5. Potential cancer prevention: Some studies** suggest that pomegranate > extract may help inhibit the growth of cancer cells, particularly in > prostate and breast cancer.* > > *6. Improved memory: There's evidence that** pomegranate consumption may > have cognitive benefits and support brain health.* > > *However, it's essential to consume pomegranates as part of a balanced > diet. While they offer numerous health benefits, excessive consumption > could lead to too many calories or sugar intake. If you have specific > health concerns or dietary restrictions, it's a good idea to consult with a > healthcare professional or nutritionist before making significant changes > to your daily diet.* > > *Q3 How long does water take to go through the human body?* > > *A3 Vimal Makwana, The ultimate reader Sep 3* > > *The time it takes for water to pass through the human body can vary > depending on several factors, including a person's age, metabolism, overall > health, and individual hydration status**. * > > *However, on average, it takes about **6 to 8 hours **for water to pass > through the digestive system and be absorbed into the bloodstream.* > > *Here's a rough breakdown of the process:* > > *Ingestion: When you drink water, it enters your** stomach almost > immediately.* > > *Stomach: Water typically remains in the stomach** for about 20-30 > minutes, where it mixes with stomach acid and begins the process of > digestion.* > > *Small Intestine: After leaving the stomach, water* *enters the small > intestine, where most of the absorption of water and nutrients occurs. This > process can take several hours.* > > *Large Intestine: Any remaining unabsorbed water** and waste products > then move into the large intestine (colon). Here, the colon absorbs more > water, and the remaining waste eventually forms stool.* > > *Elimination: The time it takes for stool to be** eliminated from the > body can vary widely among individuals. On average, it can take anywhere > from 12 to 48 hours from the time you ingest water until waste is > eliminated as stool.* > > *Keep in mind that these are approximate times and can vary depending on > factors such as the** type of food consumed, individual digestive health, > and hydration levels. * > > *Staying well-hydrated is essential for overall** health, and the body > continually regulates its water balance to maintain proper functioning.* > > *Q4 What is the relationship between anatomy and physiology in the > body?* > > *A4 Ken Saladin,Former professor of histology (microscopic > anatomy)Sep 2* > > *Physiology creates anatomy. Anatomy makes** physiology possible. Form > follows function, just as I put it on the front cover.* > > [image: Description: > https://qph.cf2.quoracdn.net/main-qimg-dc0768102342bb6ee65265eb88fd3948] > > *Q5 How often should I eat per day?* > > *A5 Healthgood at Fitness (2017–present)Sep 1* > > *There is no one-size-fits-all answer to this** question, as what works > best for one person may not work for another. However, here are some > general guidelines to consider:* > > * Three Main Meals: Many people follow the traditional pattern of eating > three main meals per day: breakfast, lunch, and dinner. These meals are > typically spaced out evenly throughout the day and provide the majority of > your daily calorie intake.* > > *Snacks: In addition to the main meals, some** people include snacks in > their daily routine. Snacks can help maintain energy levels between meals > and prevent overeating during main meals. Healthy snack options include > fruits, nuts, yogurt, or whole-grain crackers.* > > *Listen to Your Body: Pay attention to your body's** hunger and fullness > cues. Some individuals may naturally feel hungry every few hours and > benefit from eating smaller, more frequent meals and snacks. Others may > feel comfortable with three main meals.* > > *Athletes and Active Individuals: If you're highly** active or an > athlete, you may need to eat more frequently to support your energy needs. > This could involve pre- and post-workout snacks or meals.* > > *Intermittent Fasting: Some people choose to** practice intermittent > fasting, which involves cycling between periods of eating and fasting. > There are various intermittent fasting schedules, so you can choose one > that aligns with your lifestyle and goals.* > > * Portion Control: Regardless of how often you eat, it's important to > pay attention to portion sizes. Eating balanced portions can help you > manage your calorie intake and maintain a healthy weight.* > > * Hydration: Don't forget to stay hydrated throughout the day by > drinking water. Proper hydration is essential for overall health and can > also help control hunger.* > > * Individual Needs: Keep in mind that individual nutritional needs can > vary based on factors like age, activity level, metabolic rate, and health > conditions. It's a good idea to consult with a healthcare provider or > registered dietitian for personalized dietary recommendations.* > > *In summary, there is no universal rule for how often you should eat per > day. Your ideal meal frequency should be based on your unique circumstances > and preferences. It's important to focus on eating nutrient-dense foods, > listening to your body's cues, and maintaining a balanced diet to support > your overall health and well-being* > > -- > You received this message because you are subscribed to the Google Groups > "iyer123" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/iyer123/1542576568.1162527.1694784988790%40mail.yahoo.com > <https://groups.google.com/d/msgid/iyer123/1542576568.1162527.1694784988790%40mail.yahoo.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Thatha_Patty" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. 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