as much as caucasians..
Here is the study of comparison between skin color:
pmc.ncbi.nlm.nih.gov
Racial differences in AA patterns among White and Black men have been previously evaluated.1 Consistent with our results,
Black men were 4 times more likely than White men to exhibit ____no/minimal___ balding
Now the hypothesis of why that could be. Obviously, blacks have more melanin(note: not melatonin). In fact in every person literally I see grow back their hair there is a change from a pale white in their skin to a darker shade.
www.frontiersin.org
We propose the reason for the inverse relationship between melanin levels and ATP production is that melanin supplies energy to cells.(ME:avoiding possibly free radicals from the mitochondria providing it is highly damaged. Molecules/hormones that cause mitochondrial fission cause hair loss and those that increase mitchondrial fusion are hair growth candidates). If melanin provides energy to cells, then increasing melanin increases the amount of energy that cells are obtaining from melanin.
Therefore, it would follow that the body evolved in such a way that molecules that cause a great increase in melanin over an individual’s baseline, thus providing extra energy to the cell, would also limit mitochondrial ATP production, as this ATP would be wasted.
Due to its low stability in water, ATP cannot be stored in cells, except for very short periods of time (55).
Many studies have found that the use of light-emitting equipment leads to increased cellular ATP levels. It is not yet understood why this occurs (56). However, it is important to note that these studies measured cellular ATP levels, not cellular ATP production. We theorize that melanin is converting some of the emitted light into energy, and cells are able to utilize this energy instead of ATP. Thus, we theorize that there was not an increase in ATP production, as was assumed, and the reactions did not take place in the mitochondria. Instead, we suggest the measured increase in cellular ATP levels was due to a reduction in ATP usage due to an increase in energy produced by melanin, as a result of absorption of the light, which the cells were then able to utilize, conserving ATP (Figure 2A).
This also points to our conclusion that energy from melanin is the first choice of energy for a large number of cellular pathways and provides further explanation for the inverse relationship between melanin levels and levels of mitochondrial ATP production. As noted previously, ATP has low stability in water, and, therefore, can only be stored in cells for short periods of time (55). Thus, if energy from melanin is the first choice for many pathways, then if mitochondrial ATP production does not decrease much, there will be an overabundance of ATP in the cells, as seen in these studies.
Much of this ATP may end up degrading and, therefore, being wasted. This explains the evolutionary benefit to decreasing mitochondrial ATP production when there is an increase of melanin.
Here is the study of comparison between skin color:
A cross-sectional study of male balding patterns in people of color
A cross-sectional study of male balding patterns in people of color - PMC
pmc.ncbi.nlm.nih.gov
Racial differences in AA patterns among White and Black men have been previously evaluated.1 Consistent with our results,
Black men were 4 times more likely than White men to exhibit ____no/minimal___ balding
Now the hypothesis of why that could be. Obviously, blacks have more melanin(note: not melatonin). In fact in every person literally I see grow back their hair there is a change from a pale white in their skin to a darker shade.
Melanin: a unifying theory of disease as exemplified by Parkinson’s, Alzheimer’s, and Lewy body dementia
Frontiers | Melanin: a unifying theory of disease as exemplified by Parkinson’s, Alzheimer’s, and Lewy body dementia
Melanin, a ubiquitous dark pigment, plays important roles in the immune system, including scavenging reactive oxygen species formed in response to ultraviole...
www.frontiersin.org
We propose the reason for the inverse relationship between melanin levels and ATP production is that melanin supplies energy to cells.(ME:avoiding possibly free radicals from the mitochondria providing it is highly damaged. Molecules/hormones that cause mitochondrial fission cause hair loss and those that increase mitchondrial fusion are hair growth candidates). If melanin provides energy to cells, then increasing melanin increases the amount of energy that cells are obtaining from melanin.
Therefore, it would follow that the body evolved in such a way that molecules that cause a great increase in melanin over an individual’s baseline, thus providing extra energy to the cell, would also limit mitochondrial ATP production, as this ATP would be wasted.
Due to its low stability in water, ATP cannot be stored in cells, except for very short periods of time (55).
Many studies have found that the use of light-emitting equipment leads to increased cellular ATP levels. It is not yet understood why this occurs (56). However, it is important to note that these studies measured cellular ATP levels, not cellular ATP production. We theorize that melanin is converting some of the emitted light into energy, and cells are able to utilize this energy instead of ATP. Thus, we theorize that there was not an increase in ATP production, as was assumed, and the reactions did not take place in the mitochondria. Instead, we suggest the measured increase in cellular ATP levels was due to a reduction in ATP usage due to an increase in energy produced by melanin, as a result of absorption of the light, which the cells were then able to utilize, conserving ATP (Figure 2A).
This also points to our conclusion that energy from melanin is the first choice of energy for a large number of cellular pathways and provides further explanation for the inverse relationship between melanin levels and levels of mitochondrial ATP production. As noted previously, ATP has low stability in water, and, therefore, can only be stored in cells for short periods of time (55). Thus, if energy from melanin is the first choice for many pathways, then if mitochondrial ATP production does not decrease much, there will be an overabundance of ATP in the cells, as seen in these studies.
Much of this ATP may end up degrading and, therefore, being wasted. This explains the evolutionary benefit to decreasing mitochondrial ATP production when there is an increase of melanin.
