The investigation of the interaction of genes and environment in the context of mental health and personality yields important new insights for a better understanding of human nature. Both antenatal and postnatal environmental factors have been considered as potential modulators of genetic activity. Antenatally, especially smoking or alcohol drinking habits of the mother dramatically influence the health of the child during pregnancy and even later on in life. Here, we retrospectively investigate the influence of solar activity while the child is still in the uterus of the becoming mother on brain structure with a focus on hippocampus and amygdala volume and personality in adulthood. The NR3C1 gene is the focus of interest, because of its influence on the hypothalamic-pituitary-adrenal HPA axis and negative emotionality. Carriers of the CC variant of rs grown in the womb under the influence of high sun radiation high solar activity show both the highest hippocampal volume in the left hemisphere and lowest neuroticism scores.
A new model of the Sun's solar cycle is producing unprecedentedly accurate predictions of irregularities within the Sun's year heartbeat. The model draws on dynamo effects in two layers of the Sun, one close to the surface and one deep within its convection zone. Predictions from the model suggest that solar activity will fall by 60 per cent during the s to conditions last seen during the 'mini ice age' that began in It is years since a scientist first spotted that the Sun's activity varies over a cycle lasting around 10 to 12 years. But every cycle is a little different and none of the models of causes to date have fully explained fluctuations. Many solar physicists have put the cause of the solar cycle down to a dynamo caused by convecting fluid deep within the Sun.
The 'imminent mini ice age' myth is back, and it's still wrong
The datasets supporting this article may be requested by contacting G. Ultraviolet radiation UVR can suppress essential molecular and cellular mechanisms during early development in living organisms and variations in solar activity during early development may thus influence their health and reproduction. Although the ultimate consequences of UVR on aquatic organisms in early life are well known, similar studies on terrestrial vertebrates, including humans, have remained limited.
This time around, the myth appears to have been sparked by a Sky News interview with Northumbria University mathematics professor Valentina Zharkova. The most important takeaway point is that the scientific research is clear — were one to occur, a grand solar minimum would temporarily reduce global temperatures by less than 0. This was a modestly cool period running from about the year to