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In a person of advanced age, the hair be...

In a person of advanced age, the hair become thinner gradually. It happens because of decrease in

A

synthesis of glucose

B

synthesis of proteins

C

less energy availability

D

decrease in blood supply

Text Solution

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Question**: The question asks why hair becomes thinner in a person of advanced age. We need to identify the physiological changes that occur with aging that could lead to this condition. 2. **Analyzing the Options**: The question provides several options regarding what decreases in advanced age that could lead to thinning hair. We need to evaluate each option critically. 3. **Option Evaluation**: - **Option 1: Decrease in synthesis of glucose**: This option is incorrect because glucose is primarily obtained from the diet, not synthesized in significant amounts within the body. - **Option 2: Decrease in synthesis of proteins**: This option is also incorrect. While protein synthesis may slow down with age, adequate amino acids from the diet can still support protein synthesis. - **Option 3: Less energy availability**: This option is not relevant to hair thinning. Energy availability does not directly correlate with hair health. - **Option 4: Decrease in blood supply to hair follicles**: This option is correct. With aging, there is often a decrease in blood circulation, which means hair follicles receive fewer nutrients and oxygen, leading to thinner hair. 4. **Conclusion**: Based on the evaluation, the correct answer is that hair becomes thinner due to a decrease in blood supply to the hair follicles. **Final Answer**: The thinning of hair in a person of advanced age happens because of a decrease in blood supply to the hair follicles. ---
**Step-by-Step Solution:** 1. **Understanding the Question**: The question asks why hair becomes thinner in a person of advanced age. We need to identify the physiological changes that occur with aging that could lead to this condition. 2. **Analyzing the Options**: The question provides several options regarding what decreases in advanced age that could lead to thinning hair. We need to evaluate each option critically. 3. **Option Evaluation**: - **Option 1: Decrease in synthesis of glucose**: This option is incorrect because glucose is primarily obtained from the diet, not synthesized in significant amounts within the body. ...
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