Complex sentence: In 1972 he suffered several heart attacks, and his health was seriously weakened after this, affecting him and his work, and two years later he died at the age of 81 on August 21,1974 in Caracas.
Split into simpler sentences: In 1972 he suffered several heart attacks, and his health was seriously weakened. Two years later he died at the age of 81 on August 21,1974 in Caracas.