(CareerBuilder.com) -- Co-workers are always a great topic of conversation. You never run out of things to say when it comes to talking about the different types of people you work with, what you love, what you hate and how you deal with it all. 

We thought we'd do a little research into some of the best co-workers out there. Not just the different personality types, but real people, who do real good things. 

What we found found is that many workers out there are generous, kind people who put their colleagues' lives before their own without hesitation. 

Here are 5 of the most heroic co-workers people encountered this year. 

The heroes 

1. Co-worker helps to save a fellow employee's life 

Claude Marlowe, a diabetic, went to work one morning like any other day. When he went to shake a colleague's hand, he had a heart attack and dropped dead -- literally. 

That's when Debi Coffman and another co-worker, Larry Garrett, realized that this wasn't a diabetic episode; Marlowe had no pulse. The two performed CPR and chest compressions and revived Marlowe three times before emergency crews arrived. He suffered five heart attacks and was brain dead for at least two hours. He would not be alive had his co-workers not known what to do. (Nascar.com) 

2. Chandler worker helps colleague get new artificial leg 

For 30 years, Gregory Lewis, a retail maintenance worker, walked with the same prosthetic device on his left leg. As the years wore on, so did his artificial leg. One day, he lifted his foot off the ground to get into his car, and the artificial leg fell off. 
How many co workers are they talking about?
Who is the second one about?
What did Gregory do?
What was wrong?
How long had he had it?
Why did it fall off?
Who was the first one about?
Was he sick?
With what?
Did he die?
Who helped him?
What were their names?
What did they do to help?
How many times did they revive him?
Why did they stop?
How many heart attacks did he have?
Two
2. Chandler worker helps colleague get new artificial leg 
Chandler
2. Chandler worker helps colleague get new artificial leg 

maintenance
Gregory Lewis, a retail maintenance worker
his artificial leg fell off
 and the artificial leg fell off.
For 30 years
For 30 years, Gregory Lewis, a retail maintenance worker, walked with the same prosthetic device on his left leg
it fell off while getting into his car
One day, he lifted his foot off the ground to get into his car
Claude Marlowe
Claude Marlowe, a diabetic, went to work 
yes
he had a heart attack and dropped dead 
he had a heart attack
he had a heart attack 
yes
 and dropped dead -- literally
his co-workers
Debi Coffman and another co-worker, Larry Garrett
Debi Coffman and Larry Garrett
Debi Coffman and another co-worker, Larry Garrett
CPR and chest compressions
The two performed CPR and chest compressions
three times
 revived Marlowe three times
emergency crews arrived
 before emergency crews arrived
five
He suffered five heart attacks