Never freeze; +6 on all IQ rolls to wake up or to recover from surprise or mental stun; Your side gets +1 to initiative rolls (+2 if you're the leader)
+1 to all HT rolls to stay conscious, avoid death, resist disease, resist poison; recover FP at twice the normal rate (but not FP spent for spells or psi powers)
+2 to all HT rolls to stay conscious, avoid death, resist disease, resist poison; recover FP at twice the normal rate; lose FP at half the normal rate (in both cases, not FP spent for spells or psi powers)