On the Paper by Leonid A. Gavrilov and Natalia S. Gavrilova entitled "Trends in Human Species-Specific Lifespan and Actuarial Aging Rate" Published in Biochemistry (Moscow), Vol. 87, Nos. 12-13, pp. 1622-1633 (2022).

The methodology used for analyzing the survival process should keep in mind heterogeneity in empirical data. Cross-sectional data are more heterogeneous in comparison with birth-cohort data.

[The lifespans of scholars referred to different disciplines according to data from diverse sources: Inferences and challenges.].

Human lifespan is known to correlate positively with education level. In the present paper, it is explored whether there are significant differences in lifespan among those whose education may be reasonably rated as the highest possible, i.e.

[Longevity and some reasons of death of musicians of the XX century.].

Data on lifespan and some reasons of musicians' death of the XX century are presented in this article. The mean age of death (MAD) in male musicians (n=20 218) was 67,8 years, whereas the MAD in female ones was 71,5 years. «Classic» musicians both men and women lived longer than jazz, pop and variety music performing musicians (6,3 and 9,7 years longer respectively) and much longer then rock musicians (21,7 and 30,7 years longer, respectively).