But the psychological or spiritual effect can't be discounted, says Dillard. "People love the idea of cleansing, of purification rituals, going to the Ganges, to the spa. It has powerful psychological, religious, spiritual meaning. That has its own positive effect on health. But we need to separate that from saying this is science or good medicine."
Le département de Santé Animale de l'Institut, dirigé par Muriel Vayssier-Taussat, étudie les interactions entre la santé animale et humaine. “Pour préserver la santé de l'Homme, une des voies est de préserver la santé animale” explique-t-elle. Mais cette protection ne doit pas être menée n'importe comment. Ces dernières années, il a été observé que la résistance aux antibiotiques avait largement augmenté chez de nombreux animaux dû à un usage massif. Ceci contribue à l'apparition de nouveaux virus plus résistants et donc potentiellement plus facilement transmissibles à l'Homme. L'unité Génétique Animale et Biologie Intégrative, dirigée par Claire Rogel-Gaillard, se consacre à l'étude de la diversité génomique en élevage, et son lien avec les santés : “Comment sélectionner des animaux qui vont être en bonne santé [...] tout en limitant l'usage d'anti-infectieux et en réduisant l'empreinte environnementale ? Il y a en fait un lien assez fort entre la durabilité des systèmes d'élevage et la santé des Hommes et animaux de la Terre.” A l'aide de travaux sur la variabilité individuelle des réponses immunitaires (aux maladies et aux vaccins) sur les animaux d'élevage, Mme Rogel-Gaillard explique qu'il “n'existe pas d'animal complètement optimal dans toutes les conditions et dans tous les environnements [...]. Une génétique optimale dans un environnement peut ne pas être optimale dans un autre.” 
Un microbiote. Un microbiote est défini lorsqu'un ensemble de micro-organismes vit dans un écosystème précis. Par exemple, nos intestins abritent leur propre microbiote. “On parle d'une grande diversité d'espèces (bactéries, champignons, etc.) auxquelles on peut ajouter les virus. Derrière cette grande diversité d'espèces se cache une grande diversité de fonctions, relativement centrales au fonctionnement des écosystèmes” explique Christophe Mougel.
2. Life-style and Social factors – Our contemporary life style is the second biggest factor for failing health of people. Increasing sedentary habits, long working hours, reduced rest hours; diet containing highly processed food, poor in fiber content and with loads of artificial colors and flavors; increased anxiety and tensions related to education, career, job, performance, etc are some of the factors that are responsible for decreasing the health status of our society at large. Coupled with environmental factors and allopathic drugs, these factors are playing havoc with our health.
But you might have seen many people around you, who never seem to get an acute illness. People who have never had a cold or never had a fever in ten years. Not all of these people are healthy. In fact many of these people are more ill than their counterparts who keep getting their occasional acutes. I say this because these people are not super humans and most of them are not in ‘ideal’ health either. The fact is that these people do get affected by environmental factors and other stresses. But the result of these forces is not seen on physical plane. Such people are more affected on the mental and emotional plane. They become ‘dis-eased’ but their disease is not easily apparent on the physical level. If you want to cross-check my statement, then go to a mental asylum and enquire about the rate of prevalence of acute ailments. You will find it extremely low.

‘Health’ is an elusive word. Most people who consider themselves healthy are not. And many people who are suffering from some known disease, may be relatively healthy. Health is a concept which does not merely relate to the absence of disease, of healthy working of organs, or having good thoughts. Health is a holistic concept. It relates to a person as a whole. Not just the person you see, but also the person you ‘feel’. Health is a tri-une of three parts:
Skip juice cleanses or liquid diets. A popular cleansing regimen for losing weight involves drinking only juice or another type of liquid for a few days to a week. This is dangerous because you could end up without essential nutrients. These extreme cleanses are also counterproductive because most people just gain back any weight they lost when they go back to eating normal food again. Doctors don't recommend any sort of diet like this, and say following a healthy diet and exercise routine is much better for losing weight.[15]
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