Population Change Doesn't Affect Maximum GDP, Youth, Retired

Just to add, there are another duplicate links regarding Health/Lifespan.

#,Health,PUBLICSERVICES,0.5,0,1,HIGHGOOD,icons_health,#,#,"Retired_freq,-0.2+(0.4*x),8","WorkerProductivity,-0.15+(0.15*x)","ImmigrationDemand,0.07*(x^6)",,,,,,,,,,,,,,,
(...)
#,Lifespan,PUBLICSERVICES,0,0,1,HIGHGOOD,icons_lifespan,#,"_year,-0.1+(0.02*x)","Health,0+(0.65*x),4","Environment,-0.2+(0.4*x),6","Technology,0.0+(0.15*x),8","ViolentCrimeRate,0.0-(0.2*x)",#,"Retired_freq,0.0+(0.12*x)","Population,-0.1+(0.2*x)","HealthcareDemand,0.13*(x^3)",,,,,,,,,,

Health-to-Retired_freq: -0.2+(0.4*x),8
Lifespan-to-Retired_freq: 0.0+(0.12*x)

So, Health has a bigger impact on the membership of the Retired compared to Lifespan, which has been mentioned already.

The retired living long & healthy won’t make any difference to pension costs compared to them living long & unhealthy.