Electromagnetic radiation from the atmosphere and Earth interacts with our organismHealth professionals live with emergency service saturation situations that do not conform to specific patterns and cannot find an easy explanation. This is the case with noteworthy hospital admission spikes, increased births or more or less synchronised death, or coincidental time-to-time seizures and attacks of different types and natures. There are scientific explanations behind these patterns that are certainly elusive and little known, and which also explain many other observations that are well known by other professionals from diverse fields, such as primary education teachers or staffing and production services of large companies.This book explains why we human beings cannot isolate ourselves from nature. Not only do we depend on it for food or to extract the resources we need, but also, as we will see in detail, atmospheric weather conditions our lives to levels unknown to most people. And we do not refer to the inconveniences caused by cold or bad weather, but to invisible factors that penetrate our nervous system and our cells, somehow altering their functioning. Meteopathy, closely linked to electrosensitivity (EHS), directly and unconsciously affects the quality of life of millions of people, influencing their ailments, their well-being, their mood, and, as a consequence, the effectiveness and quality of their work.The sferics, which we will explain in the book and which we will refer to frequently in these pages, penetrate easily into buildings. That is why it may be surprising that, isolated as we are from nature, at least in appearance, by cement and brick, those natural influences that seem so distant enter our organism without us realising it, conditioning in some way the physical condition and attitude to face life. The problem is currently deepening, as technological electromagnetic radiations have similar characteristics and effects on living organisms.Index: Author's foreword 1- Introduction 2- Different effects of weather 2.1- Influence of weather on animals Atmospheric pressureThe humidity of the airThe temperatureThe windThe atmospheric electricityWeather-predicting animals2.2- Influence of weather on people TemperatureAir masses and frontsThe windThe storm and rainThe fog3- Factors to which these effects have been attributed 3.1- Biometeorology: a disciplinary 'bridge' of knowledge3.2- Meteopathy: a strange ailment of unknown aetiology that is common in the population 4- Invisible agents: sferics. Advances on what is already known4.1- Some pioneering authors 4.2- The importance of sferics 4.3- Action mechanism of sferics on living cells 4.4- Unsuspected effects 5- Empirical analysis 5.1- Empirical observations (headaches and weather maps) 5.2- General conclusions of the empirical analysis carried out 5.3- New questions and some possible answers 6- The embarrassing hypothesis 6.1- The effects of technological radiation on humans6.2- Illuminating similarities 6.3- The effects of technological radiation on animals and plantsEffects on behaviour and navigation (orientation)Effects on distribution and habitat lossEffects on reproduction and recruitment rate Effects on trees and plants7- When science collides with the economy7.1- Conflicts of interest 7.2- The dark role of ICNIRP 7.3- International scientist appeals 7.4- The latest research 8- Some animals sense earthquakes 8.1- Salient factors to which perception is attributed8.2- Elusive factors 9- The geomagnetic activity of the Earth and the radiation of the sun 10- We are part of nature 10.1- Evolutionary advantages of feeling or being sensitive to sferics