## 4 Results and Discussion  
### Results  
1.1 Difference Analysis of the Overall Pre- and Post-test of \"Physical and Mental Health\" among the Elderly in the Community before and after the Aromatherapy Intervention  
From Tables 2 and 3, the difference analysis results for the pre- and post-test of the \"physical and mental health\" of the elderly in the community were as follows: there were significant differences in \"physical and mental health\" between the pre-test and post-test in Group A, Group B, Group C, and Group D, and only Group E did not show a significant difference. 1.2 Before and after the Aromatherapy Experiment: Difference Analysis of the Pre- and Post-Test of \"Stress\" among the Elderly in the Community  
From Tables 4 and 5, the difference analysis results of the pre- and post-test of the \"stress\" construct of the elderly in the same group of communities were as follows: Group A, Group B, and Group D showed significant differences in \"pressure\" before and after the intervention, but there was no significant difference observed for Groups C and E. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Group** & **Test** & **Number** & **Average** & **Standard Deviation** & **Standard Error** \\ \hline group A & Pre-test & 15 & 5.400 & 2.261 & 0.584 \\  & post test & 15 & 2.933 & 2.344 & 0.605 \\ \hline group B & Pre-test & 15 & 2.867 & 1.922 & 0.496 \\  & post test & 15 & 0.867 & 1.246 & 0.322 \\ \hline group C & Pre-test & 15 & 2.267 & 1.668 & 0.431 \\  & post test & 15 & 1.867 & 1.642 & 0.424 \\ \hline group D & Pre-test & 15 & 3.533 & 3.335 & 0.861 \\  & post test & 15 & 1.933 & 2.052 & 0.530 \\ \hline group E & Pre-test & 15 & 3.600 & 2.028 & 0.524 \\  & post test & 15 & 3.067 & 1.870 & 0.483 \\ \hline \hline \end{tabular} Control group: Group E = without any aromatherapy intervention; Experimental groups: Group A = massage with compound essential oils + inhalation; Group B = massage with compound essential oils; Group C = massage with pure base oil; Group D = inhalation with compound essential oils.  
\end{table} 
Table 4: Summary table of pre- and post-test mean and standard deviation of “stress” for middle-aged and elderly people in the same group. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Group** & **Test** & **Number** & **Average** & **Standard Deviation** & **Standard Error** \\ \hline Group A & Pre-test & 15 & 3.678 & 0.409 & 0.106 \\  & post test & 15 & 4.465 & 0.395 & 0.102 \\ \hline Group B & Pre-test & 15 & 3.846 & 0.185 & 0.048 \\  & post test & 15 & 4.100 & 0.253 & 0.065 \\ \hline Group C & Pre-test & 15 & 3.760 & 0.410 & 0.106 \\  & post test & 15 & 4.056 & 0.435 & 0.112 \\ \hline Group D & Pre-test & 15 & 3.653 & 0.461 & 0.119 \\  & post test & 15 & 4.011 & 0.278 & 0.072 \\ \hline Group E & Pre-test & 15 & 3.878 & 0.221 & 0.057 \\  & post test & 15 & 3.868 & 0.306 & 0.079 \\ \hline \hline \end{tabular} Control group: Group E = without any aromatherapy intervention; Experimental groups: Group A = massage with compound essential oils + inhalation; Group B = massage with compound essential oils; Group C = massage with pure base oil; Group D = inhalation with compound essential oils.  
\end{table} 
Table 2: Summary table of the overall pre- and post-test mean and standard deviation of “physical and mental health” for middle-aged and elderly people in the community.