Court of Appeals of Georgia November 10, 1958, 37419 (United States Fidelity & Guaranty Co. v. Messer)

Gardner, Presiding Judge.

In Hartford Accident &c. Co. v. Waters, 87 Ga. App. 117 (73 S. E. 2d 70) this court said: “Where there was no expert opinion to the effect that the exertion contributed to the attack, unless and until some method is developed to ascertain with some degree of certainty that such an attack is not contributed to by exertion, we think that knowledge from human experience,