I am 31, 63 Inches height, 65 kgs wt, well toned athletic built, a sportsman. Have borderline bp 140/90 - no medication. Recently did lipid profile - Total Cholesterol (191), HDL (43), LDL (133), VLDL(14), Triglyserides (74). Are these numbers alarming? Can I lower my cholesterol levels merely by lifestyle changes?