Answer:With this system, blood always flows in only one direction inside the heart. There are also valves at the bottom of the large arteries that carry blood away from the heart: the aorta and the pulmonary artery. These valves keep the blood from flowing backward into the heart once it has been pumped out.
Explanation:
Answer:
well i have that problem too
Explanation:
i think what happens is i lose so much in my life or i'm so sad that when someone shows affection to me i get attached so easily and i feel so stupid sometimes for it, but sometimes that is just the type of person they're and when you address it they won't take it seriously because they don't view you in the same way and it hurts when that something or someone that was keeping you from being alone with your thoughts leave. the best advice i can give is you can either do what makes you happy, meaning any of your hobbies. Singing, dancing, drawing, gaming, cooking, binging shows, teach yourself not to rely on someone else for your own happiness and try teaching yourself that not everyone is worth your time or your long paragraph's. you give it more time, more time to see what type of person they are, more time for you to adjust to being around them, more time for you guys to bond so you both feel the same and it's not just you one sided.
Answer:
Autoimmune disorder
Explanation:
An autoimmune disorder occurs when the body's immune system attacks and destroys healthy body tissue by mistake.
The blood cells in the body's immune system help protect against harmful substances. These substances contain antigens. The immune system produces antibodies against these antigens that enable it to destroy these harmful substances.
When you have an autoimmune disorder, your immune system does not distinguish between healthy tissue and potentially harmful antigens. As a result, the body sets off a reaction that destroys normal tissues.
Stress Can Be Especially Detrimental to those with Autoimmune Diseases.
A new study has found an association between stress-related conditions such as anxiety and post-traumatic stress disorder (PTSD) and autoimmune diseases such as type 1 diabetes, celiac disease, and rheumatoid arthritis (RA).