Incarnum-Fortified Body
(Magic of Incarnum, page 38, DnD 3.5)
[General]
The incarnum within you strengthens your body's toughness, enabling you to withstand greater injury.
Benefit
When you take this feat, you gain 2 hit points for each incarnum feat you have. Whenever you take a new incarnum feat, you gain 2 more hit points. You gain a +4 bonus on Fortitude saves made to avoid death from massive damage.