Pathogen — A pathogen or infectious agent is a biological agent that causes disease or illness to its host. The term is most often used for agents that disrupt the normal physiology of a multicellular animal or plant.
Explanation:
Trophic hormones stimulates the pineal gland , which in turn, stimulates the thymus,endocrine, all except nerve tissue....
<h2>The neurotransmitters maybe negatively affected</h2><h2 /><h2>

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Physical Activity: Burns Calories, makes bones stronger, helps heart get moving which helps blood flow better.
Sleep: Gives your body a much needed break and allows you to be more active the next day.
Answer:
I love happiness.
Explanation:
I do stay myself without worries. I approve my health being stay happily.