Sit-ups can lead you paralysis

Due to personal reason, i have started to focus on exercise, how to adjust my body and keep exercise. the function of every movement posture. i always felt there was some ache after did sit-ups every time. the posture which was not standard or error, i consider at first. rectified it and the ache was still. so i searched on the internet know of why and also consulted fitness coach about cheap oakley sunglasses. they suggested me that you can stop this movement posture. it is harmful for your body, even cause paralysis. i was confused that this is bad for our body, why we still follow, we even not got from our government or teachers to notice us.
There was a topic about that you can stop to do sit-up from The Wall Street Journal. US fitness coach and even the army are promoting to use plank instead of sit-up for evaluate one's performance. even though they plan to abolish cheap mlb jerseys from the training list. there was an adult just do few sit-up  and felt feckless beneath the neck. after checked from the doctor, when the man do sit-up within his hand on his head, the  blood vessels can not stand in a  continuous power from cervical, then caused him paralysis. maybe this is a single, but i think this is not a single, especially in modern fast society, many, many people are not keeping exercise, even stay on a cheap nba jerseys day by day, it was not strong power for their back muscle. sit-ups are needed with high core power on it.