They're taking the de oxygenated blood away from the tissue of the heart.

Provides protection against oxidative and free radical damage and

Copper is the oxidising agent (it accepts electrons), and iron is the reducing agent (it loses electrons).

So the six carbons, after cellular respiration, end up with six oxidized carbons, with plus four oxidation states.

Last year, Apple filed some patents to get blood oxygenation, heart rate and body temperature via the Earbuds.

Hard to be Easing

What is so hard?

What's hard?

Now, it's hard to do.

If it's hard, the harder it is the better.

That's hard to say.

Turkey s Balancing Act

It's hard to believe

It's hard to believe.

He's hard to please.

He's hard to please!

Hard to believe.

It would be difficult to...

It's a little hard to breathe.

I's hard to believe.

It's hard to tell.

You're too hard to please.

It is difficult to translate a poem into another language.

It's hard to persuade Jonathan.

The hard work begins now.

It is difficult to generalize.

It is difficult to prove a negative.

Solutions are hard to find.

It would be pretty difficult.

They are hard to find.

It's hard to say his age.

It's what? Too hard to estimate.

It's hard to say.

Now, we're at the hard part.

A nice little bullet? You gotta stop in time.

And it's difficult to play.

Realy hard on you...

It never hurts to rewrite it.

3.50 it's hard to read.

Isn't she hard to understand?

They're hard to just get automatically.

It was hard to tell.

And it's hard to explain

So that's a sort of tough choice.

It's incredibly hard to clean up.