And also some of these patients with MS or underlying MS may have transcend weakness, again, when they bend the neck.

So that's an important thing.

And I'm sure that a lot of people know about MS hug.

I get this feeling that there is a stiffness which comes and goes usually in the chest or torso.

It is actually because of spasticity.

Spasticity means the muscles are very stiff because of MS.

And when spasticity happens, it can be in two ways.

One is what we call a continuous spasticity.

The other one is a phasic or dynamic spasticity where it comes and goes.

And this MS hug is something like a dynamic spasticity where you get this feeling of spasticity coming and going.

That's called MS hug.

Very, very important to remember one more thing.

That is, if you get a band of anesthesia, in other words, a band over the chest or the torso where you don't feel the sensation, or if you do get some burning sensation, any strange sensation or lack of sensation in the form of a band in the chest of torso, please do not ignore.

The reason I'm telling you, I have seen patients.

In fact, I know a person, a lady who had this band of anesthesia across her chest, and she was applying some little cream or something over there.

And I knew her and she called me and I said, "No, I mean, you have been doing this for weeks.

Please don't do that.

Go and get an MRI straight."

And she got an MRI, spinal tap.

This was about 20 years ago, and it shows she had MS.

And that time we had only three MS medicines.

Today she's doing very well.

She has climbed on the corporate ladder.

She has children.

She's doing very well.

What if in an alternate universe she ignored it, she could have been disabled.

That's why I want to say again, I've seen few patients like that.

Again and again, I want to say, "If you do get a band of anesthesia which lasts more than 24 hours in the chest or torso, please don't.

It has to come from the spine."

- Now when you say band, do you mean a specific like area?

- It can be any area because you see, I say band because spinal cord will supply sensation to the chest as well as the abdomen, right?

There are multiple nerves that come from the spinal cord.

So it depends upon which nerve and which area.

So there are multiple nerves.

Okay?

So if it is here, we say T5, thoracic five.

If it is farther down, we say T10.

So depending on whether it's thoracic five, thoracic 10, wherever, in the chest or torso you see, or rather how this strange burning sensation or a band of anesthesia.

And if it lasts more than 24 hours, please seek help because that is suggesting that something is going on with the spinal cord and if it is ignored, person could be paralyzed.