No, you do not age in heaven.
In heaven, our bodies will be made new and eternal, free from decay and aging. The concept of aging implies deterioration and decline, which are inconsistent with the eternal and perfect nature of existence in heaven. The physical bodies and minds in heaven are often described as being beyond the limitations of earthly existence, therefore, age becomes irrelevant. Whether our minds or bodies appear to be a certain age upon arrival in heaven doesn't ultimately matter, as we will exist in a state of eternal life and perfection.
