Impact of health on intelligence | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-01-13

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Impact_of_health_on_intelligence


00:01:42 1 Nutrition
00:02:15 1.1 Timing
00:02:51 1.2 Intrauterine growth retardation
00:04:50 1.3 Breastfeeding
00:07:17 1.4 Infancy
00:07:42 1.5 Micronutrients and vitamin deficiencies
00:12:27 1.6 Protein and energy malnutrition
00:13:32 1.7 Stunting
00:14:50 2 Toxins
00:15:00 2.1 Industrial chemicals
00:17:22 2.2 Alcohol and drugs
00:20:03 3 Healthcare during pregnancy and childbirth
00:20:55 4 Stress
00:22:34 5 Infectious diseases
00:24:24 5.1 Tropical infectious diseases
00:26:04 6 Effects of other diseases
00:27:32 6.1 Myopia and hyperopia
00:29:21 7 Other associations
00:29:46 8 See also



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- Socrates


SUMMARY
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Health can affect intelligence in various ways. Conversely, intelligence can affect health. Health effects on intelligence have been described as being among the most important factors in the origins of human group differences in IQ test scores and other measures of cognitive ability. Several factors can lead to significant cognitive impairment, particularly if they occur during pregnancy and childhood when the brain is growing and the blood–brain barrier of the child is less effective. Such impairment may sometimes be permanent, sometimes be partially or wholly compensated for by later growth.
Developed nations have implemented several health policies regarding nutrients and toxins known to influence cognitive function. These include laws requiring fortification of certain food products and laws establishing safe levels of pollutants (e.g. lead, mercury, and organochlorides). Comprehensive policy recommendations targeting reduction of cognitive impairment in children have been proposed.Improvements in nutrition (often involving specific micronutrients) due to public policy changes have been implicated in IQ increases in many nations (as part of the overall Flynn effect), such as efforts fighting iodine deficiency in the U.S.